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Original implementation of Sharpen Image filters

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This commit is contained in:
Bruno Herbelin
2022-05-31 22:53:28 +02:00
parent e3bb95b3dd
commit 7c850b0405
12 changed files with 153 additions and 57 deletions
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45
ImageFilter.cpp
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@@ -485,15 +485,15 @@ void ImageFilter::setProgramParameter(const std::string &p, float value)
////////////////////////////////////////
const char* BlurFilter::method_label[BlurFilter::BLUR_INVALID] = {
"Gaussian", "Hash", "Openning", "Closing", "Fast 2x2"
"Gaussian", "Scattered", "Opening", "Closing", "Fast"
};
std::vector< FilteringProgram > BlurFilter::programs_ = {
FilteringProgram("Gaussian", "shaders/filters/blur_1.glsl", "shaders/filters/blur_2.glsl", { { "Radius", 0.5} }),
FilteringProgram("Hashed", "shaders/filters/hashedblur.glsl", "", { { "Iterations", 0.5 }, { "Radius", 0.5} }),
FilteringProgram("Openning", "shaders/filters/hashederosion.glsl", "shaders/filters/hasheddilation.glsl", { { "Radius", 0.5} }),
FilteringProgram("Closing", "shaders/filters/hasheddilation.glsl", "shaders/filters/hashederosion.glsl", { { "Radius", 0.5} }),
FilteringProgram("Fast 2x2", "shaders/filters/blur.glsl", "", { })
FilteringProgram("Gaussian", "shaders/filters/blur_1.glsl", "shaders/filters/blur_2.glsl", { { "Radius", 0.5} }),
FilteringProgram("Scattered","shaders/filters/hashedblur.glsl", "", { { "Radius", 0.5}, { "Iterations", 0.25 } }),
FilteringProgram("Opening", "shaders/filters/hashederosion.glsl", "shaders/filters/hasheddilation.glsl", { { "Radius", 0.5} }),
FilteringProgram("Closing", "shaders/filters/hasheddilation.glsl","shaders/filters/hashederosion.glsl", { { "Radius", 0.5} }),
FilteringProgram("Fast", "shaders/filters/blur.glsl", "", { })
};
BlurFilter::BlurFilter (): ImageFilter(), method_(BLUR_INVALID), mipmap_buffer_(nullptr)
@@ -588,4 +588,37 @@ void BlurFilter::accept (Visitor& v)
}
////////////////////////////////////////
///// //
//// SHARPENING FILTERS ///
/// ////
////////////////////////////////////////
const char* SharpenFilter::method_label[SharpenFilter::SHARPEN_INVALID] = {
"Unsharp mask", "Convolution", "Edge"
};
std::vector< FilteringProgram > SharpenFilter::programs_ = {
FilteringProgram("Unsharp Mask", "shaders/filters/sharpen_1.glsl", "shaders/filters/sharpen_2.glsl", { { "Amount", 0.5} }),
FilteringProgram("Sharpen", "shaders/filters/sharp.glsl", "", { { "Amount", 0.5} }),
FilteringProgram("Sharp Edge", "shaders/filters/bilinear.glsl", "shaders/filters/sharpenedge.glsl", { { "Strength", 0.5} }),
};
SharpenFilter::SharpenFilter (): ImageFilter(), method_(SHARPEN_INVALID)
{
}
void SharpenFilter::setMethod(int method)
{
method_ = (SharpenMethod) CLAMP(method, SHARPEN_MASK, SHARPEN_INVALID-1);
setProgram( programs_[ (int) method_] );
}
void SharpenFilter::accept (Visitor& v)
{
FrameBufferFilter::accept(v);
v.visit(*this);
}