rgb to gray

Original: http://www.cnblogs.com/carekee/articles/3629964.html First, the basicFor color turn grayscale, there is a well-known psychological formula: Gray = r*0.299 + g*0.587 + b*0.114 Second, integer algorithm In practical applications, it is

First, the basisFor color to grayscale, there is a well-known psychological formula: Gray = r*0.299 + g*0.587 + b*0.114 Second, integer algorithm In practical application, we want to avoid low speed floating-point operation, so we need integer

First, the basisFor color to grayscale, there is a well-known psychological formula: Gray = r*0.299 + g*0.587 + b*0.114 Second, integer algorithm In practical application, we want to avoid low speed floating-point operation, so we need integer

RGB and YUV Multimedia programming First, the concept 1. What is RGB? The method of encoding a color is collectively called " Color space " or " gamut ." In the simplest terms, the "color space" of any color in the world can be defined as a fixed

Transferred from: http://blog.csdn.net/jiangxinyu/article/details/8000999General 3D programming only need to use RGB color space is good, but in fact, the art staff is more using HSV (HSL), because it is easy to adjust the saturation and

1 Preface The color of nature is ever changing. In order to give color a quantitative measurement standard, we need to establish a color space model to describe various colors, as human perception of color is a complex process of combination of

1 PrefaceThe color of nature is ever changing. In order to give color a quantitative measurement standard, we need to establish a color space model to describe various colors, as human perception of color is a complex process of combination of

About RGB, yuy2, yuyv, yvyu, uyvy, and ayuv] Common RGB/YUV formats in DirectShow Source: http://hqtech.nease.netAuthor: Lu Qiming Knowledge: RGB and YUV ---- From DirectShow practices by Lu Qiming The color display principle of the Computer Color

HSV (hue, saturation, value) is a color space created by a.r. Smith in 1978, also known as the hexcone model ). The color parameters in this model are: tone (H), saturation (s), and brightness (V ). HSV Color Space Model[1]Tone H: used for angle

6649429Method One:For color turn grayscale, there is a well-known psychological formula:Gray = r*0.299 + g*0.587 + b*0.114Method Two:In practical applications, it is desirable to avoid low-speed floating-point operations, so integer arithmetic is