>> On 30 Apr 2016, at 21:37, Michael <[email protected]> wrote: >> >> I'm trying to adjust an image, a .png file. What I want to do is a gamma >> adjust, to lighten it. > > Maybe I’m missing something, but why not use Preview? Open the PNG, select > Tools > Adjust Color… and then save it.
Because I did not know that Pre_view_ is also Pre_edit_ :-) ** EDIT: AAAGUUUUGGHH! STUPID STUPID DOCUMENT SYSTEM!! Assume that any change you make will be *saved out even if you are just playing around*. AAUGH. That, by the way, is a really good reason not to use Apple tools for playing and testing. Forced auto-save in place is a dumb idea. Having to remember that you "save as"/"duplicate" before you start playing, even before you give it a file system identity, is just not intuitive. Meanwhile: Apple has a system under the hood that is designed to let you apply quartz filters to images, or with the older funhouse, to apply other things. Heck, there was one program that let you apply icc profiles to images. No, I don't mean Preview's "assign profile" -- that doesn't change the display of the image. It seems to adjust the numbers at the pixels at the same time, so that there's no actual change in what you have unless you go out of gamut. --- Entertaining minecraft videos http://YouTube.com/keybounce _______________________________________________ MacOSX-talk mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-talk
