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diff --git a/texmf-dist/source/latex/opacity-pro/doc/blendmodes.tex b/texmf-dist/source/latex/opacity-pro/doc/blendmodes.tex deleted file mode 100644 index 62a67d01..00000000 --- a/texmf-dist/source/latex/opacity-pro/doc/blendmodes.tex +++ /dev/null @@ -1,153 +0,0 @@ -\documentclass{article} -\usepackage{amsmath} -\usepackage{graphicx} -\usepackage{array,longtable} - -\begin{document} - -\noindent The following list of blend modes is taken verbatim from section -7.2.4 of the \textsl{PDF Reference}, Sixth Edition (Version 1.7). - -\noindent\hfill\begin{longtable}{>{\ttfamily}lp{3.5in}} -Normal & Selects the source color, ignoring the backdrop. -% $$B(c_b,c_s)=c_s$$ -\\[3pt] -Multiply & Multiplies the backdrop and source color values: The - result color is always at least as dark as either of the two - constituent colors. Multiplying any color with black produces black; - multiplying with white leaves the original color unchanged. Painting - successive overlapping objects with a color other than black or - white produces progressively darker colors. -% $$B(c_b,c_s)=c_b\times c_s$$ -\\[3pt] - -Screen & Multiplies the complements of the backdrop and source - color values, then complements the result: The result color is - always at least as light as either of the two constituent colors. - Screening any color with white produces white; screening with black - leaves the original color unchanged. The effect is similar to - projecting multiple photographic slides simultaneously onto a single - screen. -% $$ -% B(c_b,c_s) = 1 - [ (1 - c_b) \times (1 - c_s) ] -% = c_b + c_s - (c_b\times c_s) -% $$ -\\[3pt] -Overlay & Multiplies or screens the colors, depending on the - backdrop color value. Source colors overlay the backdrop while - preserving its highlights and shadows. The backdrop color is not - replaced but is mixed with the source color to reflect the lightness - or darkness of the backdrop. -% $$B(c_b,c_s)=\operatorname{HardLight}(c_b,c_s)$$ -\\[3pt] - -Darken & Selects the darker of the backdrop and source colors: - The backdrop is replaced with the source where the - source is darker; otherwise, it is left unchanged. -% $$B(c_b,c_s)=\min(c_b,c_s)$$ -\\[3pt] - -Lighten & Selects the lighter of the backdrop and source colors: - The backdrop is replaced with the source where the - source is lighter; otherwise, it is left unchanged. -% $$B(c_b,c_s)=\max(c_b,c_s)$$ -\\[3pt] - -ColorDodge &Brightens the backdrop color to reflect the source - color. Painting with black produces no changes. -% $$ -% B(c_b,c_s)=\begin{cases} -% \min(1,c_b/(1-c_s)) & \text{if $ c_s < 1$}\\[3pt] -% 1 & c_s = 1 -% \end{cases} -% $$ -\\[3pt] - -ColorBurn & Darkens the backdrop color to reflect the source color. - Painting with white produces no change. -% $$ -% B(c_b,c_s)=\begin{cases} -% \min(1,(1-c_b)/c_s) & \text{if $ c_s > 0$}\\[3pt] -% 0 & c_s = 0 -% \end{cases} -% $$ -\\[3pt] - - -HardLight & Multiplies or screens the colors, depending on the - source color value. The effect is similar to shining a harsh - spotlight on the backdrop. -% $$ -% B(c_b,c_s)=\begin{cases} -% \operatorname{Multiply}(c_b,2\times c_s) & \text{if $ c_s \le 0.5$}\\[3pt] -% \operatorname{Screen}(c_b,2\times c_s -1) & c_s > 0.5 -% \end{cases} -% $$ -\\[3pt] - -SoftLight & Darkens or lightens the colors, depending on the source - color value. The effect is similar to shining a diffused spotlight - on the backdrop. -% $$ -% B(c_b,c_s)=\begin{cases} -% c_b - (1 - 2\times c_s)\times c_b\times (1-c_b) & \text{if $ c_s < 0.5$}\\[3pt] -% c_b + (2 \times c_s - 1) \times (\operatorname{D}(c_b)-c_b) & c_s > 0.5 -% \end{cases} -% $$ -% where -% $$ -% D(x)=\begin{cases} -% ((16\times x -12) \times x + 4) \times x & \text{if $ x < 0.25$}\\[3pt] -% \sqrt{x} & c_s > 0.25 -% \end{cases} -% $$ -\\[3pt] - -Difference &Subtracts the darker of the two constituent colors from - the lighter color: Painting with white inverts the backdrop color; - painting with black produces no change. -% $$ -% B(c_b,c_s) = | c_b - c_s | -% $$ -\\[3pt] - -Exclusion & Produces an effect similar to that of the \texttt{Difference} - mode but lower in contrast. Painting with white inverts the backdrop - color; painting with black produces no change. -% $$ -% B(c_b,c_s) = c_b + c_s - 2\times c_b \times c_s -% $$ -\\[3pt] -Hue & Creates a color with the hue of the source color and the - saturation and luminosity of the backdrop color. -% $$ -% B(C_b,C_s)=\operatorname{SetLum}(\operatorname{SetSat}(C_s,\operatorname{Sat}(C_b)),\operatorname{Lum}(C_b)) -% $$ -\\[3pt] - -Saturation & Creates a color with the saturation of the source color - and the hue and luminosity of the backdrop color. Painting with this - mode in an area of the backdrop that is a pure gray (no saturation) - produces no change. -% $$ -% B(C_b,C_s)=\operatorname{SetLum}(\operatorname{SetSat}(C_b,\operatorname{Sat}(C_s)),\operatorname{Lum}(C_b)) -% $$ -\\[3pt] - -Color & Creates a color with the hue and saturation of the source - color and the luminosity of the backdrop color. This preserves the - gray levels of the backdrop and is useful for coloring monochrome - images or tinting color images. -% $$ -% B(C_b,C_s)=\operatorname{SetLum}(C_s,\operatorname{Lum}(C_b)) -% $$ -\\[3pt] -Luminosity & Creates a color with the luminosity of the source color - and the hue and saturation of the backdrop color. This produces an - inverse effect to that of the \texttt{Color} mode. -% $$ -% B(C_b,C_s)=\operatorname{SetLum}(C_b,\operatorname{Lum}(C_s)) -% $$ -\\[3pt] -\end{longtable} -\end{document} |