Image Color Downsizing

[Rick Harrison]

Hi again Thomas,

Good news!  Turns out the dictionary documentation was wrong again.
The export image statement actually works under iOS in the simulator just fine!
Looks like someone forgot to update the dictionary for this.

So, that problem has been solved!  Yea!!!

Thank you for your help.

Rick


On Nov 27, 2012, at 10:19 AM, Rick Harrison <harrison at all-auctions.com> wrote:

> 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
>>> 
> 
> 
> _______________________________________________
> use-livecode mailing list
> use-livecode at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode

__________________________________
Rick Harrison

You can buy my $10 music album "Funny Time Machine" digital CD on the iTunes Store Now!

To visit the iTunes Store now to listen to samples of my CD please click on the
following link.  (Please note you must have iTunes installed on your computer for this link to work.)  

http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?playListId=213668290