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Draw: iml upscaling for UHD improved

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git-svn-id: svn://ultimatepp.org/upp/trunk@12260 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2018-09-07 16:23:39 +00:00
parent 26376ecd6c
commit 54a2c7bb33
5 changed files with 157 additions and 632 deletions
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15
uppsrc/Draw/Uhd.cpp
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@ -74,6 +74,21 @@ Image Upscale2x(const Image& src)
Size isz = src.GetSize();
Image s = RecreateAlpha(Upscale2x(GetOver(CreateImage(isz, White()), src), White()),
Upscale2x(GetOver(CreateImage(isz, Black()), src), Black()));
struct SFilter : ImageFilter9 { // Improve contours
virtual RGBA operator()(const RGBA **mx) {
RGBA s = mx[1][1];
int l = mx[0][1].a;
int r = mx[2][1].a;
int t = mx[1][0].a;
int b = mx[1][2].a;
int l1 = 110;
int l2 = 230;
return l * r * t * b || s.a > l1 || mx[0][1].a > l2 || mx[2][1].a > l2 || mx[1][0].a > l2 || mx[1][2].a > l2 ? s
: RGBAZero();
}
} ef;
s = Filter(s, ef);
ImageBuffer h(s);
h.SetResolution(IMAGE_RESOLUTION_UHD);
h.SetHotSpot(src.GetHotSpot() * 2);