Show Posts
26
Video Equipment / Sofware / Technique / JPEG Conversion causing isolation issues
« on: August 19, 2010, 13:16 »
I'm running into a common iStock rejection with isolations having stray areas, etc.
I've gone back and looked at the Photoshop PSD files, and the JPG files, and I am seeing the same problem time and again. The PSD file at 16 bits has a perfect isolation. Clicking on the magic wand tool with 1 Tolerance draws a perfect path around the object.
However once I convert to 8 bit and save as a JPG (Normal encoding, 12 max quality), there are stray areas in the isolation.
This is particularly frustrating because this is obviously being caused by the 8-bit JPG conversion which iStock requires. Anyone have a way around this? Because right now I don't see a reason to do anymore isolations if the imperfections of the JPG format are going to continue messing up my images.
I've gone back and looked at the Photoshop PSD files, and the JPG files, and I am seeing the same problem time and again. The PSD file at 16 bits has a perfect isolation. Clicking on the magic wand tool with 1 Tolerance draws a perfect path around the object.
However once I convert to 8 bit and save as a JPG (Normal encoding, 12 max quality), there are stray areas in the isolation.
This is particularly frustrating because this is obviously being caused by the 8-bit JPG conversion which iStock requires. Anyone have a way around this? Because right now I don't see a reason to do anymore isolations if the imperfections of the JPG format are going to continue messing up my images.
