LiveCode Forums

Greetings,

A final note on this matter for anyone who may be interested.

Look at the color values in the images of my cats. In the correct example, all of the RGB color values are combinations of 0, 51, 102, 153, 204, and 255. That is posterization.

Regards,

Luisa Klose

Thank you, Bernd, for being candid, and not insulting my intelligence.

As I said, I will keep an eye on LiveCode.

And thank you for all your help over the last couple of weeks. I learned a lot.

Best wishes,

Luisa Klose

Ah, yes, it's the user's fault for not using it the way it was intended. :roll: So, posterizing an image is outside of LiveCode's "design envelope", but blurring an image isn't. :lol: Where does the documentation "indicate" that imageData will deliver uncertain results, (presumably with "display pro...

Thank you for your assistance, Walt. I'm not going to spend another second trying to figure out where I have to put the crutches and why. Between versions 8 and 11.5, Director added a few new functions that I didn't know about. I'm eager to experiment with them. I will keep an eye on LiveCode, and I...

Bernd,

It's still off. Thanks.

Luisa

Walt, I put each result on a separate layer in Photoshop, and check them visually by turning the layers on and off. When it appears that there is no change between images, I sample several areas in each image to make sure. The results produced by the statRound approach are way off. If you want to wr...

Thanks, Walt, for your help. Using statRound makes it worse. The numbers are supposed to be truncated. Both LiveCode and Lingo are being asked to perform the same calculations. For some reason, LiveCode returns a result that can be verified to be incorrect. Unless Photoshop and Lingo are returning i...

One special request, please, Walt & Bernd. Show me where, in my code, I need to "manually assist" LiveCode. Without rewriting the handler, please. It will be easier for me to understand what I have to do. My LiveCode airbrush has some color issues and now I'm wondering if I have to manually assist t...

Thanks for responding, guys, and thank you for your effort, Walt. Here is the result I get from Photoshop and from Lingo: sample_ps_lingo.gif And here is the result I get from LiveCode: sample_livecode.gif Both images were done with a posterization value of 6. The stack should be attached as well. W...

Walt, It's close, visually, but apparently some of the values are being calculated differently from what I expect, and it's adding an extra level at some posterization values. The algorithm calls for rounding the numbers down, so in the original script I had to create a couple of variables to compar...

Hello, My handler doesn't work properly in LiveCode, so here I am in search of an answer that will save me from having to spend any more of my time looking for something that may not even be there. The handler posterizes an image with results identical to Photoshop's posterize algorithm. Identical, ...

Kevin, like in a thumbnail viewer, where each image fits in the "cell"?

Luisa

Bernd Niggeman made a significant improvement to my Draw Gradients stack and I thought I would post the link to the improved version. I know that links are verbotten around here, so it's in my thread in the Feature Requests forum. Here's the link anyway with spaces in place of the dots: forums runre...

Here is another stack I created. This one allows the user to interactively draw horizontal gradients. The performance isn't too bad, but too slow for a lot of applications.

Regards,

Luisa Klose

Thank you, Jean-Marc, I'm glad it works well for you.

Yes, I tried not declaring a local variable in another script and it didn't work.

Warm regards,
Luisa