GPUImage Support?

[ChristopherDoherty]

Hello,

Has anyone got any idea how to implement GPUImage [https://github.com/BradLarson/GPUImage] as an Optional ImageTool for more advanced image filters and manipulations. I've been trying for the last week to implement this feature, to little success.

Any response is greatly appreciated.

Christopher

[yackle]

Hi.

What are you trying to do and what problem are you getting there?

[ChristopherDoherty]

I am trying to replace the CLFilters with my more advanced and extensive GPUImage, and since the CLFilterBase is made around CLFilters, I am unsure how to implement GPUImage filters, as in, how to replace the CLDefaultVignetteFilter with the GPUImageVignetteFilter, for example. Do you think a Switch case statement could be a suitable replacement for NSDictionary for my custom class? I don't have to much time to check as i'm busy at school at the moment.

Regards, Christopher

[yackle]

Currently, It's difficult to replace existing filters with new filters. But you can add it easily as additional filters. In order to do this, you must create a subclass of CLFilterBase.

Here is a simple example with GPUImage. If GPUImage was installed, by creating these files, CLGPUImageVignetteFilter becomes effective in the filter menu.

CLGPUImageVignetteFilter.h

#if __has_include("GPUImage.h")

#import "CLFilterBase.h"

@interface CLGPUImageVignetteFilter : CLFilterBase

@end

#endif

CLGPUImageVignetteFilter.m

#if __has_include("GPUImage.h")

#import "CLGPUImageVignetteFilter.h"

#import "GPUImage.h"

@implementation CLGPUImageVignetteFilter

+ (CGFloat)defaultDockedNumber
{
    return 2.5;
}

+ (NSString*)defaultTitle
{
    return NSLocalizedStringWithDefaultValue(@"CLGPUImageVignetteFilter_DefaultTitle", nil, [CLImageEditorTheme bundle], @"Vignette2", @"");
}

+ (BOOL)isAvailable
{
    return ([UIDevice iosVersion] >= 5);
}

#pragma mark-

+ (UIImage*)applyFilter:(UIImage*)image
{
    GPUImagePicture *imageSource = [[GPUImagePicture alloc] initWithImage:image];
    GPUImageVignetteFilter *filter = [[GPUImageVignetteFilter alloc] init];

    [imageSource addTarget:filter];
    [imageSource processImage];

    return [filter imageFromCurrentlyProcessedOutput];
}

@end

#endif

[ChristopherDoherty]

Wow, I was not expecting to get home to this! Thank you very much! You are a fantastic help.

[yackle]

:thumbsup:

[sohilmultani]

Hello i am adding GPUImage in my project but i can't add "CLGPUImageVignetteFilter" .

I am adding this code

import "CLFilterBase.h"

• (NSDictionary*)defaultFilterInfo { @"CLGPUImageVignetteFilter" : @{@"name":@"CLGPUImageVignetteFilter", @"title":[CLImageEditorTheme localizedString:@"CLGPUImageVignetteFilter_DefaultTitle" withDefault:@"Vignette"], @"version":@(6.0), @"dockedNum":@(14.0)}

}

@interface CLGPUImageVignetteFilter : CLDefaultEmptyFilter @end @implementation CLGPUImageVignetteFilter @end

the output image is nill.

Can you explain step by step please how to add "CLGPUImageVignetteFilter"

Thank you.