Re: Colour Manipulation

Now this is also available, very fast, with the same speed, for LC 6/7/8/9 on Mac using Canvas2d in a revBrowser instance (on Win revBrowser doesn't support Canvas2d) in LC-ImageToolBox-67: Basics. Get it via "Sample Stacks" of the LC-Toolbar or from

Re: Colour Manipulation

Hi all. Today I implemented this as part of LCImageToolBox89: Basics. Get it _from LC 8/9_ via "Sample Stacks" of the LC-Toolbar or http://livecodeshare.runrev.com/stack/826/LC-ImageToolBox89%3A-Basics Uses Canvas2D (no webGL because of issues with some graphic cards) in a hidden browser

Re: Colour Manipulation

Yes I agree wholeheartedly with Johnathan - I once (maybe five years ago) wanted to use ImageMagick but was put off, partly because I wanted to put it into a commercial product and couldn’t understanding the licensing rules: in particular, it seemed that I had to give all my users (purchasers)

Re: Colour Manipulation

> Jonathan L. wrote: > It would be amazing if the LC folks created an ImageMagick wrapper so that > we could use it as an external or widget! There is a Java interface (JMagick, see https://www.imagemagick.org/script/api.php) and the brand-new LiveCode FFI for Java. > If you can find a

Re: Colour Manipulation

It would be amazing if the LC folks created an ImageMagick wrapper so that we could use it as an external or widget! Sent from my iPhone > On Mar 18, 2017, at 11:30 PM, Mike Bonner via use-livecode > wrote: > > You could write a small app just to do the

Re: Colour Manipulation

You could write a small app just to do the processing (or use a web server with an lc script to process) break it into chunks, and spawn processes/server requests to offload the work maybe. Though imagemagick would be a pretty awesome solution if it can be made to do what you need. On Sat, Mar

Re: Colour Manipulation

You could put the entire ImageMagick set of files into custom properties, then, when your app first opens, look to see if ImageMagick is present. If not, then have your app save the ImageMagick files in the same folder as your app. I have done that sort of thing before - big files, but works

Re: Colour Manipulation

With 10 million pixels, comparing 3 different base colors (RGB), and checking both upper and lower bounds, that comes to 60 million comparisons. That is an awful lot for a scripted environment. You would need to make an external (and, frankly, the LC instructions on making desktop externals do

Colour Manipulation

I've got an app that allows the user to display an image using a variable number of colours (2-24 colours). In addition, the user can specify upper and lower thresholds so that all pixels below a specified value are displayed using a colour such as black and all pixels with values above a