From 9cc89717be988ec5922fe029e5a4cf283efb0b0c Mon Sep 17 00:00:00 2001 From: Alexei Podtelezhnikov Date: Tue, 15 Dec 2020 22:36:19 -0500 Subject: [PATCH] Documentation edits. --- include/freetype/ftlcdfil.h | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/include/freetype/ftlcdfil.h b/include/freetype/ftlcdfil.h index c6995f2ff..82da9eaa8 100644 --- a/include/freetype/ftlcdfil.h +++ b/include/freetype/ftlcdfil.h @@ -55,13 +55,12 @@ FT_BEGIN_HEADER * ClearType-style LCD rendering exploits the color-striped structure of * LCD pixels, increasing the available resolution in the direction of * the stripe (usually horizontal RGB) by a factor of~3. Using the - * subpixels coverages unfiltered can create severe color fringes + * subpixel coverages unfiltered can create severe color fringes * especially when rendering thin features. Indeed, to produce * black-on-white text, the nearby color subpixels must be dimmed - * equally. - * - * A good 5-tap FIR filter should be applied to subpixel coverages - * regardless of pixel boundaries and should have these properties: + * evenly. Therefore, an equalizing 5-tap FIR filter should be applied + * to subpixel coverages regardless of pixel boundaries and should have + * these properties: * * 1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid * any shifts in appearance.