How to draw a sketch boundary or pencil boundary use GPUImage like this? The result is not good when i use a mask picture.So, i think this is a custom filter,but i don't kown how to implement it?I was puzzled for two weeks.any one can help me... the result like this(left is the PM needed, right is mine):enter image description here
the origianl picture and mask picture is: enter image description here
Hey xue looking to your problem I think you should use SketchFilter or Thresholdsketchfilter and play with values to get your desired output, but as you are asking for masking , I'm attaching a code, where I'm using Dissolve to blend two images.
func addColorBlending(withImage : UIImage) {
let blendImageFilter = DissolveBlend()
blendImageFilter.mix = 0.3
let blendImage = PictureInput(image: withImage)
blendImage.processImage()
blendImage.addTarget(blendImageFilter)
let imageToBlendOn = PictureInput(image: self.processingModel.pencileDefaultImage)
imageToBlendOn.processImage()
imageToBlendOn.addTarget(blendImageFilter)
let pictureOutput = PictureOutput()
pictureOutput.imageAvailableCallback = { imageData in
DispatchQueue.main.async {
self.handAndFootImageView.image = imageData
self.processingModel.blendedImage = imageData
}
}
blendImageFilter.addTarget(pictureOutput)
}
Here you can tweak blendImageFitler.mix property to get your desired output. Hope it Helps you.