dithering

Color Banding Android Solution

由 混江龙づ霸主 提交于 2019-11-28 06:24:33
问题 What is possible solution to banded images in Android Activity or in OpenGl. Look at the answer below. Hope it Helps 回答1: Color Banding Solved ooooooooooyyyyyyyeaaaaaaaaaa I solved color banding in two phases 1) * when we use the BitmapFactory to decode resources it decodes the resource in RGB565 which shows color banding, instead of using ARGB_8888, so i used BitmapFactory.Options for setting the decode options to ARGB_8888 second problem was whenever i scaled the bitmap it again got banded

How to draw a smooth/dithered gradient on a canvas in Android

由 ♀尐吖头ヾ 提交于 2019-11-28 03:20:37
Several answers mention to use GradientDrawable.setDither(true) to draw smooth gradients in Android. That has no effect in my code. Any idea what I have to change to get a well looking gradient in my live wallpaper? GradientDrawable gradient = new GradientDrawable(Orientation.TL_BR, colors); gradient.setGradientType(GradientDrawable.RADIAL_GRADIENT); gradient.setGradientRadius(canvas.getWidth() * 2); gradient.setDither(true); gradient.setGradientCenter(-0.1f, -0.1f); gradient.setBounds(cb); gradient.draw(canvas); Eric Schlenz Seeing as you have a Canvas to work with. Here is one option.

OpenGL gradient banding on Android

由 半城伤御伤魂 提交于 2019-11-28 01:58:48
问题 I've got a live wallpaper out on the market which uses OpenGL to render some basic shapes and a flat plane. The simple lighting creates a gradient effect across the plane, which looks fine on most devices. The Samsung Galaxy S2 series seems to have some trouble rendering the gradient, though, as you can see in this screen shot: The color banding looks awful, especially compared to this screen shot from an Incredible: I'm using a 565 EGL config in both cases, so I believe this is just a

Bayer Ordered Dithering

由 眉间皱痕 提交于 2019-11-27 22:44:57
问题 I'm updating a plugin for Paint.net which i made some months ago, it's called Simulate Color Depth and it reduces the number of colors in the image to the chosen BPP and for a long time it have had dithering included but NEVER ordered dithering and i thought it would be a nice addition to have that in so i started to search on the internet for something useful, i ended up on this wiki page here http://en.wikipedia.org/wiki/Ordered_dithering, and tried to do as written in the pseudo code for
订阅 dithering