fenix/PDF4QT
1
0
Fork 0
mirror of https://github.com/JakubMelka/PDF4QT.git synced 2025-06-05 21:59:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Bitmap processing

Browse Source
This commit is contained in:
Jakub Melka
2021-01-19 20:14:50 +01:00
parent d3827cfcc4
commit ea62e6ee32
5 changed files with 376 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
Pdf4QtLib/sources/pdfblendfunction.h
View File

@ -120,6 +120,49 @@ public:
/// \param Cs Source color
static PDFRGB blend_Luminosity(PDFRGB Cb, PDFRGB Cs);
/// Blend non-separable hue function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFGray blend_Hue(PDFGray Cb, PDFGray Cs);
/// Blend non-separable saturation function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFGray blend_Saturation(PDFGray Cb, PDFGray Cs);
/// Blend non-separable color function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFGray blend_Color(PDFGray Cb, PDFGray Cs);
/// Blend non-separable luminosity function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFGray blend_Luminosity(PDFGray Cb, PDFGray Cs);
/// Blend non-separable hue function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFCMYK blend_Hue(PDFCMYK Cb, PDFCMYK Cs);
/// Blend non-separable saturation function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFCMYK blend_Saturation(PDFCMYK Cb, PDFCMYK Cs);
/// Blend non-separable color function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFCMYK blend_Color(PDFCMYK Cb, PDFCMYK Cs);
/// Blend non-separable luminosity function
/// \param Cb Backdrop color
/// \param Cs Source color
static PDFCMYK blend_Luminosity(PDFCMYK Cb, PDFCMYK Cs);
/// Union function
static constexpr PDFColorComponent blend_Union(PDFColorComponent b, PDFColorComponent s) { return b + s - b * s; }
private:
static PDFRGB nonseparable_gray2rgb(PDFGray gray);
static PDFGray nonseparable_rgb2gray(PDFRGB rgb);