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improve interpretation of maplut output 

a mono image though a colour lut needs to take the lut's interpretation
This commit is contained in:
John Cupitt 2014-10-08 12:31:36 +01:00
parent aa45c81464
commit 9069b2f9ad
2 changed files with 9 additions and 1 deletions
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3
ChangeLog
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@ -1,5 +1,6 @@
8/10/14 started 7.40.10
8/10/14 started 7.40.11
- rework extra band handling for colour functions
- set interpretation of matlut output more carefully
8/9/14 started 7.40.10
- icc_import and icc_transform checks the input profile for compatibility

7
libvips/histogram/maplut.c
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@ -602,6 +602,13 @@ vips_maplut_build( VipsObject *object )
if( lut->Bands != 1 )
maplut->out->Bands = lut->Bands;
/* The Type comes from the image with many bands. A B_W index image,
* for example, needs to become an RGB image when it goes through a
* three-band LUT.
*/
if( lut->Bands != 1 )
maplut->out->Type = lut->Type;
g_signal_connect( in, "preeval",
G_CALLBACK( vips_maplut_preeval ), maplut );
g_signal_connect( in, "posteval",