Identifies the different format compression schemes.
Values:
IG_COMPRESSION_NONE |
No compression. |
IG_COMPRESSION_PACKED_BITS |
Packed bits compression. |
IG_COMPRESSION_HUFFMAN |
Huffman encoding. |
IG_COMPRESSION_CCITT_G3 |
CCITT Group 3. |
IG_COMPRESSION_CCITT_G4 |
CCITT Group 4. |
IG_COMPRESSION_CCITT_G32D |
CCITT Group 3 2D. |
IG_COMPRESSION_JPEG |
JPEG compression. |
IG_COMPRESSION_RLE |
Run length encoding. |
IG_COMPRESSION_LZW |
LZW compression. |
IG_COMPRESSION_ABIC_BW |
IBM ABIC compression. |
IG_COMPRESSION_ABIC_GRAY |
IBM ABIC compression. |
IG_COMPRESSION_JBIG |
IBM JBIG compression. |
IG_COMPRESSION_FPX_SINCOLOR |
Single color compression. |
IG_COMPRESSION_FPX_NOCHANGE |
Save with the same compression as loaded. |
IG_COMPRESSION_DEFLATE |
Deflate compression. |
IG_COMPRESSION_IBM_MMR |
IBM MMR compression. |
IG_COMPRESSION_ABIC |
IBM ABIC compression. |
IG_COMPRESSION_PROGRESSIVE |
Progressive compression (Progressive JPEG and may be PNG in future). |
IG_COMPRESSION_EQPC |
PowerSDK EQPC(Wavelet) compression. |
IG_COMPRESSION_JBIG2 |
Reserved for future use. |
IG_COMPRESSION_LURAWAVE |
This value has been deprecated and will be removed from the public API in a future release. |
IG_COMPRESSION_LURADOC |
This value has been deprecated and will be removed from the public API in a future release. |
IG_COMPRESSION_LURAJP2 |
This value has been deprecated and will be removed from the public API in a future release. |
IG_COMPRESSION_ASCII |
Image data is converted to ASCII text. |
IG_COMPRESSION_RAW |
Image data is stored directory in binary raw format. |
IG_COMPRESSION_JPEG2K |
JPEG2K compression. |
IG_COMPRESSION_HDP |
HD Photo compression. |