Search found 4 matches

by atnbueno
2012-12-05T11:07:25-07:00
Forum: Users
Topic: Upscaling a few pixels linearly (color math) [SOLVED]
Replies: 9
Views: 26035

Re: Upscaling a few pixels linearly (color math) [SOLVED]

No apology necessary. To be fair, it was a bit of both. I re-discovered by myself the "pixels have area" idea, and I only arrived to the scale/resize issue when trying to solve the average colour issue Fred helped me with. BTW, let me take the opportunity to thank you for your work in /Usage. I've j...
by atnbueno
2012-11-29T11:15:54-07:00
Forum: Users
Topic: Upscaling a few pixels linearly (color math) [SOLVED]
Replies: 9
Views: 26035

Re: Upscaling a few pixels linearly (color math) [SOLVED]

Indeed. And easier to explain :-)


Thanks,
Antonio
by atnbueno
2012-11-27T14:17:07-07:00
Forum: Users
Topic: Upscaling a few pixels linearly (color math) [SOLVED]
Replies: 9
Views: 26035

Re: Upscaling a few pixels linearly (color math) [SOLVED]

Thanks for trying :-) I didn't know about -virtual-pixel and although it didn't help in this issue it made me think about how much of the problem was the size of my images. So I replicated my work on bigger versions of my images and not only have I found where the numbers 170 and 85 come from... htt...
by atnbueno
2012-11-27T12:47:36-07:00
Forum: Users
Topic: Upscaling a few pixels linearly (color math) [SOLVED]
Replies: 9
Views: 26035

Upscaling a few pixels linearly (color math) [SOLVED]

Hello, everyone. I'm playing with very small images and it seems I'm missing something because I'm not getting what I expect. What follows is a simplified example. I have the following 3-pixel image as a text file ( primary.txt ): # ImageMagick pixel enumeration: 3,1,255,srgb 0,0: (255, 0, 0) #FF000...