CODEWITHSUNDEEP
iphoneiosimage-processinggpuimage
V-Xtreme
V-Xtreme

Reputation: 7333

Using GPUImageRGBFilter

I've trying to use the GPUImageRGBFilter but without success. I want to change each channel value, for instance:

Red: 0.2
Green: 0.4
Blue: 0.3

How can I do this? Can anyone tell me how to use GPUImageRGBFilter?

Upvotes: 3

Views: 580

Answers (2)

Sandeep Khade
Sandeep Khade

Reputation: 2832

Properties are Given there in GPUImageRGBFilter Class please check for

@property (readwrite, nonatomic) CGFloat red;
@property (readwrite, nonatomic) CGFloat green;
@property (readwrite, nonatomic) CGFloat blue;

Upvotes: 2

Garrett Albright
Garrett Albright

Reputation: 2841

Assuming what you want to do is multiply the values of each color channel by the values in your post, the solution should be pretty simple;

GPUImageRGBFilter *rgbFilter = [[GPUImageRGBFilter alloc] init];
[rgbFilter setRed:.2];
[rgbFilter setGreen:.4];
[rgbFilter setBlue:.3];

Then use addTarget: and processImage as the documentation instructs.

Upvotes: 1

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