541 lines
17 KiB
Lua
541 lines
17 KiB
Lua
--[[
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image_time.lua - synchronize image time for images shot with different cameras
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Copyright (C) 2019, 2020 Bill Ferguson <wpferguson@gmail.com>.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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]]
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--[[
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image_time - non-destructively modify the image time
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DESCRIPTION
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image_time non destructively adjusts image times by modifying the
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database image exif_datetime_taken field. There are 4 modes: adjust time,
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set time, synchronize time, and reset time.
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ADJUST TIME
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adjust time mode lets you chose an offset in terms of years, months,
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days, hours, minutes, and seconds. The adjustment can be added or
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subtracted.
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WARNING: When adding and subtracting months the result will usually
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be what is expected unless the time being adjusted is at the end of
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the month. This is because a month is a variable amount of time that
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can be 28, 29, 30 or 31 days depending on the month. Example: It's
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March 31st and I subtract a month which not sets the time to February
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31st. When that gets set to a valid time, then the date changes to
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March 3rd.
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SET TIME
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set time mode allows you to pick a date and time and set the image
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time accordingly. Fields may be left out. This is useful when
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importing scanned images that don't have an embedded date.
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SYNCHRONIZE TIME
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I recently purchased a 7DmkII to replace my aging 7D. My 7D was still
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serviceable, so I bought a remote control and figured I'd try shooting
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events from 2 different perspectives. I didn't think to synchonize the
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time between the 2 cameras, so when I loaded the images and sorted by
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time it was a disaster. I hacked a script together with hard coded values
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to adjust the exif_datetime_taken value in the database for the 7D images
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so that everything sorted properly. I've tried shooting with 2 cameras
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several times since that first attempt. I've gotten better at getting the
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camera times close, but still haven't managed to get them to sync. So I
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decided to think the problem through and write a proper script to take
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care of the problem.
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RESET TIME
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Select the images and click reset.
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USAGE
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ADJUST TIME
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Change the year, month, day, hour, minute, second dropdowns to the amount
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of change desired. Select add or subtract. Select the images. Click
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adjust.
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SET TIME
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Set the time fields to the desired time. Select the images to change. Click
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set.
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SYNCHRONIZE TIME
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Select 2 images, one from each camera, of the same moment in time. Click
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the Calculate button to calculate the time difference. The difference is
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displayed in the difference entry. You can manually adjust it by changing
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the value if necessary.
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Select the images that need their time adjusted. Determine which way to adjust
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adjust the time (add or subtract) and select the appropriate choice.
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If the image times get messed up and you just want to start over, select reset time
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from the mode and reset the image times.
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RESET TIME
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Select the images and click reset.
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ADDITIONAL SOFTWARE REQUIRED
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* exiv2
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BUGS, COMMENTS, SUGGESTIONS
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* Send to Bill Ferguson, wpferguson@gmail.com
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CHANGES
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]]
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local dt = require "darktable"
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local du = require "lib/dtutils"
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local df = require "lib/dtutils.file"
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local ds = require "lib/dtutils.string"
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local gettext = dt.gettext
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local img_time = {}
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du.check_min_api_version("3.0.0", "image_time")
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-- Tell gettext where to find the .mo file translating messages for a particular domain
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gettext.bindtextdomain("image_time",dt.configuration.config_dir.."/lua/locale/")
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local function _(msgid)
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return gettext.dgettext("image_time", msgid)
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end
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local PS = dt.configuration.runnin_os == "windows" and "\\" or "/"
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local ERROR = -1
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-- function to convert from exif time to system time
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local function exiftime2systime(exiftime)
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local yr,mo,dy,h,m,s = string.match(exiftime, "(%d-):(%d-):(%d-) (%d-):(%d-):(%d+)")
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return(os.time{year=yr, month=mo, day=dy, hour=h, min=m, sec=s})
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end
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-- function to convert from systime to exif time
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local function systime2exiftime(systime)
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local t = os.date("*t", systime)
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return(string.format("%4d:%02d:%02d %02d:%02d:%02d", t.year, t.month, t.day, t.hour, t.min, t.sec))
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end
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local function vars2exiftime(year, month, day, hour, min, sec)
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local y = tonumber(year) and string.format("%4d", year) or " "
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local mo = tonumber(month) and string.format("%02d", month) or " "
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local d = tonumber(day) and string.format("%02d", day) or " "
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local h = tonumber(hour) and string.format("%02d", hour) or " "
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local m = tonumber(min) and string.format("%02d", min) or " "
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local s = tonumber(sec) and string.format("%02d", sec) or " "
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return(y .. ":" .. mo .. ":" .. d .. " " .. h .. ":" .. m .. ":" .. s)
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end
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local function exiftime2vars(exiftime)
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return string.match(exiftime, "(%d+):(%d+):(%d+) (%d+):(%d+):(%d+)")
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end
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local function calc_time_difference(image1, image2)
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return math.abs(exiftime2systime(image1.exif_datetime_taken) - exiftime2systime(image2.exif_datetime_taken))
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end
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local function adjust_image_time(image, difference)
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image.exif_datetime_taken = systime2exiftime(exiftime2systime(image.exif_datetime_taken) + difference)
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return
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end
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local function calculate_difference(images)
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if #images == 2 then
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img_time.diff_entry.text = calc_time_difference(images[1], images[2])
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img_time.btn.sensitive = true
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else
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dt.print(_("Error: 2 images must be selected"))
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end
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end
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local function synchronize_times(images, difference)
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for _, image in ipairs(images) do
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adjust_image_time(image, difference)
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end
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end
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local function synchronize_time(images)
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local sign = 1
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if img_time.sdir.value == "subtract" then
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sign = -1
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end
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synchronize_times(images, tonumber(img_time.diff_entry.text) * sign)
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end
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local function add_time(images)
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synchronize_times(images, tonumber(img_time.diff_entry.text))
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end
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local function year_month2months(year, month)
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year_months = tonumber(year) and year * 12 or 0
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local months = tonumber(month) and tonumber(month) or 0
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return year_months + months
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end
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local function months2year_month(months)
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dt.print_log("months is " .. months)
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local year = math.floor(months / 12)
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local month = months - (year * 12)
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return year, month
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end
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local function get_image_taken_time(image)
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-- get original image time
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local datetime = nil
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local exiv2 = df.check_if_bin_exists("exiv2")
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if exiv2 then
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p = io.popen(exiv2 .. " -K Exif.Image.DateTime " .. image.path .. PS .. image.filename)
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if p then
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for line in p:lines() do
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if string.match(line, "Exif.Image.DateTime") then
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datetime = string.match(line, "(%d-:%d-:%d- %d-:%d-:%d+)")
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end
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end
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p:close()
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end
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else
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dt.print(_("unable to detect exiv2"))
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datetime = ERROR
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end
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return datetime
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end
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local function _get_windows_image_file_creation_time(image)
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local datetime = nil
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local p = io.popen("dir " .. image.path .. PS .. image.filename)
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if p then
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for line in p:lines() do
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if string.match(line, ds.sanitize_lua(image.filename)) then
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local mo, day, yr, hr, min, apm = string.match(line, "(%d+)/(%d+)/(%d+) (%d-):(%d+) (%S+)")
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if apm == "PM" then
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hr = hr + 12
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end
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datetime = vars2exiftime(yr, mo, day, hr, min, 0)
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end
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end
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p:close()
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else
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dt.print(_("unable to get information for ") .. image.filename)
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datetime = ERROR
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end
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return datetime
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end
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local function _get_nix_image_file_creation_time(image)
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local datetime = nil
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local p = io.popen("ls -lL --time-style=full-iso " .. image.path .. PS .. image.filename)
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if p then
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for line in p:lines() do
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if string.match(line, ds.sanitize_lua(image.filename)) then
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datetime = vars2exiftime(string.match(line, "(%d+)%-(%d-)%-(%d-) (%d-):(%d-):(%d+)."))
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end
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end
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p:close()
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else
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dt.print(_("unable to get information for ") .. image.filename)
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datetime = ERROR
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end
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return datetime
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end
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local function get_image_file_creation_time(image)
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-- no exif time in the image file so get the creation time
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local datetime = nil
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if dt.configuration.running_os == "windows" then
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datetime = _get_windows_image_file_creation_time(image)
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else
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datetime = _get_nix_image_file_creation_time(image)
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end
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return datetime
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end
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local function get_original_image_time(image)
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local image_time = image.exif_datetime_taken
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local reset_time = nil
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reset_time = get_image_taken_time(image)
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if reset_time then
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if reset_time == ERROR then
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return image_time
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else
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return reset_time
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end
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else
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reset_time = get_image_file_creation_time(image)
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if reset_time then
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if reset_time == ERROR then
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return image_time
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else
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return reset_time
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end
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end
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end
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end
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local function reset_time(images)
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if #images > 0 then
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for _, image in ipairs(images) do
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image.exif_datetime_taken = get_original_image_time(image)
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end
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else
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dt.print_error(_("reset time: no images selected"))
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dt.print(_("please select the images that need their time reset"))
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end
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end
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local function adjust_time(images)
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local SEC_MIN = 60
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local SEC_HR = SEC_MIN * 60
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local SEC_DY = SEC_HR * 24
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local offset = nil
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local sign = 1
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if #images < 1 then
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dt.print(_("please select some images and try again"))
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return
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end
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if img_time.adir.value == _("subtract") then
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sign = -1
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end
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for _, image in ipairs(images) do
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local y, mo, d, h, m, s = exiftime2vars(image.exif_datetime_taken)
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local image_months = year_month2months(y, mo)
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local months_diff = year_month2months(img_time.ayr.value, img_time.amo.value)
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y, mo = months2year_month(image_months + (months_diff * sign))
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local exif_new = vars2exiftime(y, mo, d, h, m, s)
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offset = img_time.ady.value * SEC_DY
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offset = offset + img_time.ahr.value * SEC_HR
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offset = offset + img_time.amn.value * SEC_MIN
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offset = offset + img_time.asc.value
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offset = offset * sign
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image.exif_datetime_taken = systime2exiftime(exiftime2systime(exif_new) + offset)
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end
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end
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local function set_time(images)
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if #images < 1 then
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dt.print(_("please select some images and try again"))
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return
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end
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local y = img_time.syr.value
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local mo = img_time.smo.value
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local d = img_time.sdy.value
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local h = img_time.shr.value
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local m = img_time.smn.value
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local s = img_time.ssc.value
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for _, image in ipairs(images) do
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image.exif_datetime_taken = vars2exiftime(y, mo, d, h, m, s)
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end
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end
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local function seq(first, last)
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local result = {}
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local num = first
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while num <= last do
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table.insert(result, num)
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num = num + 1
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end
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return table.unpack(result)
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end
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local function reset_widgets()
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dt.print_log("took the reset function")
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img_time.ayr.selected = 1
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img_time.amo.selected = 1
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img_time.ady.selected = 1
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img_time.ahr.selected = 1
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img_time.ayr.selected = 1
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img_time.amn.selected = 1
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img_time.asc.selected = 1
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img_time.adir.selected = 1
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img_time.syr.selected = #img_time.syr
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img_time.smo.selected = 1
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img_time.sdy.selected = 1
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img_time.shr.selected = 1
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img_time.smn.selected = 1
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img_time.ssc.selected = 1
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img_time.adir.selected = 1
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end
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-- widgets
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img_time.widgets = {
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-- name, type, tooltip, placeholder,
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{"ayr", "combobox", _("years"), _("years to adjust by, 0 - ?"), {seq(0,20)}, 1},
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{"amo", "combobox", _("months"), ("months to adjust by, 0-12"), {seq(0,12)}, 1},
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{"ady", "combobox", _("days"), ("days to adjust by, 0-31"), {seq(0,31)}, 1},
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{"ahr", "combobox", _("hours"), _("hours to adjust by, 0-23"), {seq(0,23)}, 1},
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{"amn", "combobox", _("minutes"), _("minutes to adjust by, 0-59"), {seq(0,59)}, 1},
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{"asc", "combobox", _("seconds"), _("seconds to adjust by, 0-59"), {seq(0,59)}, 1},
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{"adir", "combobox", _("add/subtract"), _("add or subtract time"), {_("add"), _("subtract")}, 1},
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{"syr", "combobox", _("year"), _("year to set, 1900 - now"), {" ", seq(1900,os.date("*t", os.time()).year)}, 1},
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{"smo", "combobox", _("month"), _("month to set, 1-12"), {" ", seq(1,12)}, 1},
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{"sdy", "combobox", _("day"), _("day to set, 1-31"), {" ", seq(1,31)}, 1},
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{"shr", "combobox", _("hour"), _("hour to set, 0-23"), {" ", seq(0,23)}, 1},
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{"smn", "combobox", _("minute"), _("minutes to set, 0-59"), {" ", seq(0, 59)}, 1},
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{"ssc", "combobox", _("seconds"), _("seconds to set, 0-59"), {" ", seq(0,59)}, 1},
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{"sdir", "combobox", _("add/subtract"), _("add or subtract time"), {_("add"), _("subtract")}, 1},
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}
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for _, widget in ipairs(img_time.widgets) do
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img_time[widget[1]] = dt.new_widget(widget[2]){
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label = widget[3],
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tooltip = widget[4],
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selected = widget[6],
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table.unpack(widget[5])
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}
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end
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img_time.syr.selected = #img_time.syr
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img_time.diff_entry = dt.new_widget("entry"){
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tooltip = _("Time difference between images in seconds"),
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placeholder = _("Select 2 images and use the calculate button"),
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text = "",
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}
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img_time.calc_btn = dt.new_widget("button"){
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label = _("Calculate"),
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tooltip = _("calculate time difference between 2 images"),
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clicked_callback = function()
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calculate_difference(dt.gui.action_images)
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end
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}
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img_time.btn = dt.new_widget("button"){
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label = _("synchronize image times"),
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tooltip = _("apply the time difference from selected images"),
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sensitive = false,
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clicked_callback = function()
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synchronize_time(dt.gui.action_images)
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end
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}
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img_time.stack = dt.new_widget("stack"){
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dt.new_widget("box"){
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orientation = "vertical",
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dt.new_widget("label"){label = _("adjust time")},
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dt.new_widget("section_label"){label = _("days, months, years")},
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img_time.ady,
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img_time.amo,
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img_time.ayr,
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dt.new_widget("section_label"){label = _("hours, minutes, seconds")},
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img_time.ahr,
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img_time.amn,
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img_time.asc,
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dt.new_widget("section_label"){label = _("adjustment direction")},
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img_time.adir,
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dt.new_widget("button"){
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label = _("adjust"),
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clicked_callback = function()
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adjust_time(dt.gui.action_images)
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end
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}
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},
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dt.new_widget("box"){
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orientation = "vertical",
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dt.new_widget("label"){label = _("set time")},
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dt.new_widget("section_label"){label = _("date: ")},
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img_time.sdy,
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img_time.smo,
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img_time.syr,
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dt.new_widget("section_label"){label = _("time:")},
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img_time.shr,
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img_time.smn,
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img_time.ssc,
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dt.new_widget("button"){
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label = _("set"),
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clicked_callback = function()
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set_time(dt.gui.action_images)
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end
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}
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},
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dt.new_widget("box"){
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orientation = "vertical",
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dt.new_widget("label"){label = _("synchronize image time")},
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dt.new_widget("section_label"){label = _("calculate difference between images")},
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img_time.diff_entry,
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img_time.calc_btn,
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dt.new_widget("section_label"){label = _("apply difference")},
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img_time.sdir,
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img_time.btn,
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},
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dt.new_widget("box"){
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orientation = "vertical",
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dt.new_widget("label"){label = _("reset to original time")},
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|
dt.new_widget("separator"){},
|
|
dt.new_widget("button"){
|
|
label = _("reset"),
|
|
clicked_callback = function()
|
|
reset_time(dt.gui.action_images)
|
|
end
|
|
}
|
|
},
|
|
}
|
|
|
|
img_time.mode = dt.new_widget("combobox"){
|
|
label = _("mode"),
|
|
tooltip = _("select mode"),
|
|
selected = 1,
|
|
changed_callback = function(this)
|
|
img_time.stack.active = this.selected
|
|
end,
|
|
_("adjust time"),
|
|
_("set time"),
|
|
_("synchronize time"),
|
|
_("reset time")
|
|
}
|
|
|
|
img_time.widget = dt.new_widget("box"){
|
|
orientation = "vertical",
|
|
reset_callback = function(this)
|
|
reset_widgets()
|
|
end,
|
|
img_time.mode,
|
|
img_time.stack,
|
|
}
|
|
|
|
dt.register_lib(
|
|
"image_time", -- Module name
|
|
_("image time"), -- Visible name
|
|
true, -- expandable
|
|
true, -- resetable
|
|
{[dt.gui.views.lighttable] = {"DT_UI_CONTAINER_PANEL_RIGHT_CENTER", 100}}, -- containers
|
|
img_time.widget,
|
|
nil,-- view_enter
|
|
nil -- view_leave
|
|
)
|