Saving pixel by pixel information data into an array

[mfavetto]

Hi, I need to create a data array with the rgb information for each pixel of a 1275 x 200 pixel image. I will then use the data in a Flash file.
I was looking into automating it since it’s over a quarter of a million cells! But I could not find any existing application on the internet that did this.
Is this something I could do with AppleScript? Please bear in mind that I have ZERO experience in scripting, I mostly use my Mac to make art.
Thanks

Mariano

[Martin_Michel]

Hi mfavetto,

I won’t recommend an AppleScript solution, but you could try using the free software iMagine Photo which allows to access pixel data.

But the author states that:

It should already be clear that this command can produce large amounts of data. The small 20 by 20 rectangle contains 400 pixels resulting in over 8000 bytes being transferred from iMagine to the script. If you attempted this for a rectangle that contained a 1 megapixel image then around 20 MBytes of data would be copied from iMagine to the Apple Script which is quite slow.

Therefor I recommend using an Obj-C tool (Foundation tool) using the CoreGraphics framework to get access to the pixel data of an image. This will be a lot faster, but also more difficult (as a scripting novice).

Good luck