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 fine. If you can find a Javascipt library that does what you need, your mission would be easy :) Sent from my iPhone > On Mar 18, 2017, at 5:03 PM, jonathandly...@gmail.com wrote: > > 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 not work for modern versions of LC and Visual > Studio). > > For a project, I was able to successfully use ImageMagick as a command line > image processor. It took a few seconds, but much better than what LC took. > > ImageMagick is pretty flexible and might give you what you need. I was using > it for green screen image extractions. > > Sent from my iPhone > >> On Mar 18, 2017, at 2:20 PM, Peter Reid via use-livecode >> <use-livecode@lists.runrev.com> wrote: >> >> 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 >> specified value are displayed using a colour such as red. Pixels with >> values between the thresholds are displayed using the specified colour range >> of 2-24 colours. The images can consist of up to 8-10 million pixels, they >> are rectangular and can be in a landscape or portrait orientation. >> >> Whilst I have this working the code that manages the changing of the number >> and use of colours in an image is rather slow. This is despite me using the >> "repeat for each" loop structure and lock the screen wherever possible to >> get the maximum speed! >> >> Does anyone have any clever algorithms, code, add-ons, etc. that can do this >> kind of thing in a flash?! >> >> Thanks >> >> Peter >> -- >> Peter Reid >> Loughborough, UK >> >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
