GPUImageSharpenFilter is different compare to CISharpenLuminance from iOS
8kt8 opened this issue · 0 comments
8kt8 commented
Hello I am trying to achieve a filter effect similar to iOS SharpenLuminescence:
extension SharpenLuminescence {
func filter(_ image: CIImage) -> CIImage {
image.applyingFilter(
"CISharpenLuminance",
parameters: [
kCIInputSharpnessKey: sharpness,
kCIInputRadiusKey: radius,
]
)
}
}
Using GPUImageSharpenFilter I am getting different results, any idea why and how to achieve a similar effect to iOS?
The left side photo is from ios, radius 20 sharpen 2, the right site is an image with GPUImageSharpenFilter applied.