Main Menu

JPEG SOF Tags

Started by lorents, February 08, 2012, 09:34:25 AM

Previous topic - Next topic

lorents

good afternoon!
I search for files JPEG with different values SOF if there are such images throw off please

0x0 = Baseline DCT, Huffman coding
0x1 = Extended sequential DCT, Huffman coding
0x2 = Progressive DCT, Huffman coding
0x3 = Lossless, Huffman coding
0x5 = Sequential DCT, differential Huffman coding
0x6 = Progressive DCT, differential Huffman coding
0x7 = Lossless, Differential Huffman coding
0x9 = Extended sequential DCT, arithmetic coding
0xa = Progressive DCT, arithmetic coding
0xb = Lossless, arithmetic coding
0xd = Sequential DCT, differential arithmetic coding
0xe = Progressive DCT, differential arithmetic coding
0xf = Lossless, differential arithmetic coding

Phil Harvey

I only have samples of these 2:

0x0 = Baseline DCT, Huffman coding
0x2 = Progressive DCT, Huffman coding

But I expect you also have samples of these.

It may be possible to generate some of the other encodings with some image processing software (like ImageMagick for example), but I haven't seen any in the wild.

- Phil
...where DIR is the name of a directory/folder containing the images.  On Mac/Linux/PowerShell, use single quotes (') instead of double quotes (") around arguments containing a dollar sign ($).

lorents

They at me too, here I sit I search for them, it is interesting to study
If isn't present, it is fine with it