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Trial settings in the table to select different quantization tables.

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git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@2266 67ed7778-7388-44ab-90cf-0a291f65f57c
This commit is contained in:
Nathan Stenzel
2001-09-17 18:39:30 +00:00
parent af765c855c
commit 6ecda3df46
1 changed files with 41 additions and 9 deletions
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50
camlibs/polaroid/jpeghead.h
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@@ -10,27 +10,56 @@
I need to figure out how to decode the image data by "hand"
and then edit this header to fit
*/
//* New table
#define quantization_table1 \
"\xFF\xDB\x00\x43\x00\x03\x02\x02" "\x03\x02\x02\x03\x03\x03\x03\x04" \
"\x03\x03\x04\x05\x08\x05\x05\x04" "\x04\x05\x0A\x07\x07\x06\x08\x0C" \
"\x0A\x0C\x0C\x0B\x0A\x0B\x0B\x0D" "\x0E\x12\x10\x0D\x0E\x11\x0E\x0B" \
"\x0B\x10\x16\x10\x11\x13\x14\x15" "\x15\x15\x0C\x0F\x17\x18\x16\x14" \
"\x18\x12\x14\x15\x14"
//*/
/* New table, but using a copy of quantization_table2 instead of 1
#define quantization_table1 \
"\xFF\xDB\x00\x43\x00\x03\x04\x04" "\x05\x04\x05\x09\x05\x05\x09\x14" \
"\x0D\x0B\x0D\x14\x14\x14\x14\x14" "\x14\x14\x14\x14\x14\x14\x14\x14" \
"\x14\x14\x14\x14\x14\x14\x14\x14" "\x14\x14\x14\x14\x14\x14\x14\x14" \
"\x14\x14\x14\x14\x14\x14\x14\x14" "\x14\x14\x14\x14\x14\x14\x14\x14" \
"\x14\x14\x14\x14\x14"
*/
/* This is the old table that might be faulty
#define quantization_table2 \
"\xFF\xDB\x00\x43\x00\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01",
"\x01\x01\x01\x01\x01"
//*/
///* New table
#define quantization_table2 \
"\xFF\xDB\x00\x43\x01\x03\x04\x04" "\x05\x04\x05\x09\x05\x05\x09\x14" \
"\x0D\x0B\x0D\x14\x14\x14\x14\x14" "\x14\x14\x14\x14\x14\x14\x14\x14" \
"\x14\x14\x14\x14\x14\x14\x14\x14" "\x14\x14\x14\x14\x14\x14\x14\x14" \
"\x14\x14\x14\x14\x14\x14\x14\x14" "\x14\x14\x14\x14\x14\x14\x14\x14" \
"\x14\x14\x14\x14\x14"
//*/
/* This is the old table that might be faulty
#define quantization_table2 \
"\xFF\xDB\x00\x43\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01\x01\x01\x01" "\x01\x01\x01\x01\x01\x01\x01\x01" \
"\x01\x01\x01\x01\x01",
"\x01\x01\x01\x01\x01"
*/
/* I am trying setting the SOFC0 so that component one uses quantization table 2
* This seems to give it higher contrast that would be needed to understand the image.
*/
#define SOFCO_320x128 \
"\xFF\xC0\x00\x11\x08\x00\x80\x01" "\x40\x03\x01\x11\x00\x02\x21\x01" \
"\xFF\xC0\x00\x11\x08\x00\x80\x01" "\x40\x03\x01\x11\x01\x02\x21\x00" \
"\x03\x11\x00"
#define SOFC0_640x248 \
"\xFF\xC0\x00\x11\x08\x00\xf8\x02" "\x80\x03\x01\x11\x00\x02\x21\x01" \
"\xFF\xC0\x00\x11\x08\x00\xf8\x02" "\x80\x03\x01\x11\x01\x02\x21\x01" \
"\x03\x11\x00"
static struct {
@@ -49,7 +78,7 @@ char *data;
// 8 of the 128 is to get the pixels I think are for color correction
// I have to wonder if the camera even makes actual 320x240 images
{19, SOFCO_320x128},
//Define Huffman Table 0x00
//Define Huffman Table 0x00 (same in old and new)
{33, "\xFF\xC4\x00\x1F\x00\x00\x01\x05" "\x01\x01\x01\x01\x01\x01\x00\x00"
"\x00\x00\x00\x00\x00\x00\x01\x02" "\x03\x04\x05\x06\x07\x08\x09\x0A\x0B"},
// Define Huffman Table 0x10
@@ -67,7 +96,7 @@ char *data;
"\xF4\xF5\xF6\xF7\xF8\xF9\xFA"},
// Define Huffman Table 0x01
{33, "\xFF\xC4\x00\x1F\x01\x00\x03\x01" "\x01\x01\x01\x01\x01\x01\x01\x01"
"\x00\x00\x00\x00\x00\x00\x01\x02" "\x03\x04\x05\x06\x07\x08\x09\x0A" "\x0B"},
"\x00\x00\x00\x00\x00\x00\x01\x02" "\x03\x04\x05\x06\x07\x08\x09\x0A\x0B"},
// Define Huffman Table 0x11
{183, "\xFF\xC4\x00\xB5\x11\x00\x02\x01" "\x02\x04\x04\x03\x04\x07\x05\x04"
"\x04\x00\x01\x02\x77\x00\x01\x02" "\x03\x11\x04\x05\x21\x31\x06\x12"
@@ -116,3 +145,6 @@ Start Of Scan: 3 components