Image Color Downsizing
Rick Harrison
harrison at all-auctions.com
Tue Nov 27 10:19:08 EST 2012
Hi Thomas,
I was looking at export image late last night without much success.
If one exports to a variable and then sets the imageData to the variable
it comes out as a mishmash.
I looked into your suggestion of "optimized" this morning and it complained
about the syntax. I found out a couple of things to make it work.
1. The term optimized is in the wrong position in the dictionary.
2, Exporting to another image container instead of a variable works.
If you use as the dictionary suggests:
export image to {file filePath | container} as {gif | png} with colorCount [optimized] color palette
so:
export "image1" to tImage as png with 16 optimized color palette
doesn't work.
If you use:
export image "Image1" to image "Image2" as png with 16 color optimized palette
it works!
Unfortunately according to the documentation, it won't work under iOS, so I guess
it's back to the drawing board.
Any other ideas?
Thanks,
Rick
On Nov 27, 2012, at 9:16 AM, Thomas McGrath III <mcgrath3 at mac.com> wrote:
> Rick,
>
> Have you checked out "export with palette" in the dictionary? It works on the palette of the image which could be set to 16 color count?
>
> export "image1" to tImage as png with 16 optimized color palette
>
> If the optimized palette form is used, then a palette with the colorCount colors will be generated that does its best to approximate all the colors present in the image. The image will be color-matched to this palette before export. If colorList is not specified, a 256 entry palette will be generated.
>
>
> export with palette
>
> Type: command
>
> Syntax:
> export image to {file filePath | container} as {gif | png} with standard palette
> export image to {file filePath | container} as {gif | png} with optimized palette
> export image to {file filePath | container} as {gif | png} with colorCount [optimized] color palette
> export image to {file filePath | container} as {gif | png} with palette colorList
>
>
> -- Tom McGrath III
> http://lazyriver.on-rev.com
> 3mcgrath at comcast.net
>
> On Nov 26, 2012, at 10:02 PM, Rick Harrison <harrison at all-auctions.com> wrote:
>
>> Hi there,
>>
>> I was wondering if anyone knew of a way to
>> downsize the colors of an image using LiveCode.
>>
>> Example: The incoming image has millions of colors,
>> and I want the color table of the image just to use 16 colors.
>>
>> Any way to do this? Suggestions?
>>
>> Thanks,
>>
>> Rick
>>
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