Get the filtered image back

[khose]

Hello!

Just send a tweet asking this question. I'm working in an app that uses the picker to apply some filters to an image. What I want to do is to let the user save the filtered image afterwards. But I don't know how to extract the image from the GL Surface. Is it possible to generate an UIImage from the filtered one?

GPUImagePicture inherits from GPUImageOutput and checking its code:

- (UIImage *)imageFromCurrentlyProcessedOutputWithOrientation:(UIImageOrientation)imageOrientation;
{
    return nil;
}

- (UIImage *)imageByFilteringImage:(UIImage *)imageToFilter;
{
    return nil;
}

- (CGImageRef)newCGImageFromCurrentlyProcessedOutputWithOrientation:(UIImageOrientation)imageOrientation;
{
    return nil;
}

- (CGImageRef)newCGImageByFilteringImage:(UIImage *)imageToFilter;
{
    return nil;
}

It seems that is not possible, with this implementation...

Thanks!

[Dmitri Cherniak]

Look at the code in the sample project. It does all of this. It has the same delegate protocol as the regular camera picker.

[khose]

Thanks I found the method. It's like processing a video image....shame on me :)

Thanks again!