RE: How invert a PICT
RE: How invert a PICT
- Subject: RE: How invert a PICT
- From: "Christopher Hickman" <email@hidden>
- Date: Wed, 12 Oct 2005 16:37:56 -0400
This Core Image code will take the image at path and invert it, putting the
resulting image in result.
//--- Begin Code Snippet ---//
NSURL *url;
CIImage *source;
CIImage *result;
CIFilter *colorInvert;
url = [NSURL fileURLWithPath:path];
source = [CIImage imageWithContentsOfURL:url];
colorInvert = [CIFilter filterWithName:@"CIColorInvert"];
[colorInvert setValue:source forKey:@"inputImage"];
result = [colorInvert valueForKey:@"outputImage"];
//---- End Code Snippet ----//
You'll want to take a look at
<http://developer.apple.com/macosx/coreimage.html> this page, and check the
links to further docs at the bottom of the page.
Topher
-----Original Message-----
From: cocoa-dev-bounces+tophu=email@hidden
[mailto:cocoa-dev-bounces+tophu=email@hidden] On Behalf Of JuanC
Sent: Wednesday, October 05, 2005 1:22 AM
To: email@hidden
Subject: How invert a PICT
Hi to everybody!!!
I'm JuanC a at home developer here in Spain (Europe). From many year
I have been programming the QuickDraw and now I wish port my programs
on Cocoa.
Well, the troube: I have a window with 6 images, in PFS format and
wish when the user clicks on it the image change to video inverso
(invert de image). With QuickDraw the procedure is using -CopyBits_,
like this:
LockPixels( pixMapSrc );
CopyBits((BitMap*) *pixMapSrc,(BitMap*) *pixMapDes,
&(*pixMapSrc)->bounds,&(*pixMapDes)-
>bounds,notSrcCopy,nil);
UnlockPixels( pixMapSrc);
How can do it using Cocoa image classes?
Thank you very much in advance.
Best regards from Spain.
Un cordial saludo desde España.
JuanC++ _______________________________________________
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