User talk:Oofoe: Difference between revisions
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::I just suggested it because I encountered the concept when I solved the [[Image convolution]] task. I'm not very surprised that it didn't produce an interesting image though; the two images don't differ all that much. (I didn't even try to do a visual difference for image difference task, and instead took my cue from the other solutions.) –[[User:Dkf|Donal Fellows]] 10:50, 31 December 2009 (UTC) |
::I just suggested it because I encountered the concept when I solved the [[Image convolution]] task. I'm not very surprised that it didn't produce an interesting image though; the two images don't differ all that much. (I didn't even try to do a visual difference for image difference task, and instead took my cue from the other solutions.) –[[User:Dkf|Donal Fellows]] 10:50, 31 December 2009 (UTC) |
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:::Yeah, I just did the image display because it was so easy once I had the calculated the difference. I figured in the spirit of showing what is "different and unique" about REBOL it would be justified to show how simply you could create a GUI to display and manipulate images... -- Oofoe |
:::Yeah, I just did the image display because it was so easy once I had the calculated the difference. I figured in the spirit of showing what is "different and unique" about REBOL it would be justified to show how simply you could create a GUI to display and manipulate images... -- Oofoe |
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:::: Speaking of which...While we have a few GUI-specific tasks (I don't know that there's an exhaustive category of all such tasks; You might need to do some browsing to find them all), it would be nice to have more. Do you think you could lend a hand there by creating a few draft tasks? I can think of any number of ideas, if you'd like some starting direction, but my GUI work has been in C++/MFC, so suspect your REBOL experience might give you a cleaner perspective for those tasks. --[[User:Short Circuit|Michael Mol]] 18:35, 31 December 2009 (UTC) |
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Revision as of 18:35, 31 December 2009
Percentage of difference between 2 images
One trick that is used when displaying differences between two images is to rebase the image so that the "zero" color is actually #808080. Then you can show differences that are both positive and negative. –Donal Fellows 11:08, 29 December 2009 (UTC)
- Hi! Thanks for the suggestion! Unfortunately, because the differences were so small, the rebased image was fairly uninteresting, so I settled for heavy contrast enhancement instead. I have updated the image and hopefully it's easier to see now. -- Oofoe
- I just suggested it because I encountered the concept when I solved the Image convolution task. I'm not very surprised that it didn't produce an interesting image though; the two images don't differ all that much. (I didn't even try to do a visual difference for image difference task, and instead took my cue from the other solutions.) –Donal Fellows 10:50, 31 December 2009 (UTC)
- Yeah, I just did the image display because it was so easy once I had the calculated the difference. I figured in the spirit of showing what is "different and unique" about REBOL it would be justified to show how simply you could create a GUI to display and manipulate images... -- Oofoe
- Speaking of which...While we have a few GUI-specific tasks (I don't know that there's an exhaustive category of all such tasks; You might need to do some browsing to find them all), it would be nice to have more. Do you think you could lend a hand there by creating a few draft tasks? I can think of any number of ideas, if you'd like some starting direction, but my GUI work has been in C++/MFC, so suspect your REBOL experience might give you a cleaner perspective for those tasks. --Michael Mol 18:35, 31 December 2009 (UTC)
- Yeah, I just did the image display because it was so easy once I had the calculated the difference. I figured in the spirit of showing what is "different and unique" about REBOL it would be justified to show how simply you could create a GUI to display and manipulate images... -- Oofoe
- I just suggested it because I encountered the concept when I solved the Image convolution task. I'm not very surprised that it didn't produce an interesting image though; the two images don't differ all that much. (I didn't even try to do a visual difference for image difference task, and instead took my cue from the other solutions.) –Donal Fellows 10:50, 31 December 2009 (UTC)