New Image Transparency Demo with Threshold feature..

[Chipp Walters]

Derek Bump wrote:

> Your script, like the altConvolve script, is just fine for small images. 
>  But as soon as you apply it to a real world image, like one from a 
> digital camera...well, most people would think that it crashed instead 
> of waiting 30 seconds for it to process.

Hi Derek,

While I understand your sentiment, I disagree with your conclusion. The 
original altTrans script was created for Ken Ray who wanted to use it on 
32x32 icons, for which it was plenty fast. I also use altConvolve to 
create blur shadows for small buttons in ButtonGagdet. I consider both 
cases to be 'real world.'

The demo I created (alluded to in the subject of this email), had a max 
size it could be used. I found it worked fine on all my computers with 
images up to the max size, and never did I see anything close to a 30 
second wait time.

Again, the algorithm is there for anyone to convert to a C function and 
either 'shell' to, or create an external with.

As always, if you don't like it, don't use it.

Regarding the altConvolve fix, thanks for your comment and I'm very 
sorry I didn't get back to you. I only now found it in my email, and it 
does appear you have a good hypothesis on why the external doesn't work. 
Unfortunately, I'm not an external writer-- though I hope to create some 
simple ones soon, with tutorials on how they're done. Perhaps that's a 
good one to start with!

best,

Chipp