Dirk Farin
Dirk Farin
BTW: is this with HEIC output or AVIF?
The image encoded by ImageMagick is not really a greyscale image. It is a color image with empty color planes. It seems to convert the greyscale input to color first....
libheif-1.6.2 didn't produce greyscale output yet. We need a heif-enc option to always convert to color.
Hi John, the HEIF standard says that the EXIF rotation is informational only and should not be used to actually rotate the image. This is different from JPEG where the...
Yes, blaming someone else for case 2 is the way to go :-) In fact, it's difficult to say how to **correctly** transform **malformed** images... If "correcting" malformed images means...
Your reference mentions the 'irot' box. This is the mandatory information. But this is not part of the EXIF data. The EXIF data is separate and also specifies a rotation...
I have completely rewritten the orientation handling when converting from/to JPEG. Now, when converting from JPEG to HEIF, irot/imir boxes are generated to match the JPEG orientation. When converting from...
Hm, I cannot reproduce this with the POC file. Tried on current master and v1.0.8. I have checked with valgrind. I get some access to uninitialized memory at other parts,...
Actually, it also crashes when image is no multiple of MaxCBSize. Test case: 176x144, MaxCBSize=32 -> crash
Hi, I just tried it. The file decodes nicely with `heif-convert`. I tried the current version from the master branch and v1.7.0. Both worked fine. Which version and what command...