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Index › Programming Questions & Help › Syntax Questions › Writing 16 bit tiffs

pberto YaBB Newbies Offline Posts: 5

Writing 16 bit tiffs May 19th, 2008, 11:17am   Hi there, I'm trying to save 16 bit tiffs. I set my color range to 16 bit with colorMode set to 2^16, draw something with accordnig values, and simply save(), but the tif are always refit to 8bit range. How can I save 16 bit values? Code: //stupid example: size(200, 200); noStroke(); colorMode(RGB, 65535); fill(23456); rect(20, 30, 50, 80); fill(63678); rect(70, 100, 80, 50); save("test.tif"); Tnx, Paolo

JohnG Ex Member	Re: Writing 16 bit tiffs Reply #1 - May 19th, 2008, 1:21pm   I don't think processing currently supports more than 8-bit/channel modes I'm afriad. your colorMode just sets the range of values to be converted to 8-bit I believe, so colorMode(RGB,3.0); means that 3.0 is equivalent to 255, or in your case 65535 will equal 255 internally.

pberto YaBB Newbies Offline Posts: 5	Re: Writing 16 bit tiffs Reply #2 - May 19th, 2008, 2:58pm   Damn, thought so though. Is there any other format library I can use maybe? Any workaround? Can this be implemented in the next release? Paolo

JohnG Ex Member	Re: Writing 16 bit tiffs Reply #3 - May 19th, 2008, 3:43pm   I don't think there's any library that supports high range images unfortunately, and I think it's definitely not trivial thing to implement unfortunately.

pberto YaBB Newbies Offline Posts: 5	Re: Writing 16 bit tiffs Reply #4 - May 19th, 2008, 4:31pm   I see. I think it would be really useful to add openexr read/write capabilities then. Can somebody let me know if this is already planned/scheduled? Otherwise we will consider to do it ourselves. P.

PhiLho  YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: Writing 16 bit tiffs Reply #5 - May 19th, 2008, 6:34pm   I would look at Java Advanced Imaging, but I don't know if they actually support this. Otherwise, Google --> tiff java