rgb to rca

1. Why should I introduce the HSI color model? in simple terms, the RGB model can be well adapted to the facts of the color, but not very well adapted to the color of human interpretation. When a person observes a colored object, we describe it with hue (hue), saturation (saturation) and intensity (Intensity). saturation and the larger the more vivid); Brightness : is a subjective factor, which is actually not measurable (brightness a

For Image Processing programmers, the image format must be understood. This article does not cover the compressed image format. It only describes the YUV and RGB Images. 1. Differences between RGB Images and YUV Images The difference between an RGB image and a YUV image is that the color space coordinate system has different descriptions, just as we use Cartesian

http://m.blog.csdn.net/blog/u014395105/41308979The recent study of how to use C + + to process images without the use of encapsulated OPENCV code is a good way to better understand OPENCV's internal principles.Search on the Internet some of the C + + code to achieve RGB (color) image conversion to Gray (grayscale) principle and code, poor readability, so I tidied up a bit, if necessary reprint, please indicate the source, thank you!First, learning Cvt

PhpImagick obtains the RGB color of the image. PhpImagick obtains the RGB color value of an image. the main color value of the image is retrieved based on the user-uploaded image, and then the related image is searched based on the color, using the quantizeImage method of Imagick, you can use php Imagick to obtain the RGB color value of an image. Retrieve the ma

RGB value conversion Rbg is often used for image processing. It can be expressed in decimal (0-255) or hexadecimal (00-ff. A pound is equal to or equal to a hexadecimal value.The decimal number is represented by 0 to 9 digits. The hexadecimal format is represented by a dozen numbers ranging from 0 to 9 plus six Latin letters A, B, C, D, E, and F. That is, a represents ten, and f Represents fifteen. According to this rule, it is easy to conver

When I looked at a database of the previous system over the past two days, I found that there was a color field, which obviously stored the color. However, the field type is integer, And the stored value is a long string of numbers. For a moment, I ran to ask the manager how to convert the number into three values: R, G, and B? The manager said that you do not know the RGB function? Oh, remember. A friend developed with VB should know this function. S

In daily development, the conversion between color gamut values in different formats is often used, and a workaround is given below. Copy Code code as follows: Regular expressions for hexadecimal color values var reg =/^# ([0-9a-fa-f]{3}|[ 0-9A-FA-F]{6}) $/; /*rgb Color conversion to 16 String.prototype.colorHex = function () { var that = this; if (/^ (rgb|

During image processing, we generally use RGB space, but in some special cases, we also use other color spaces. This article mainly introduces some common color space concepts and conversion formulas. The essence of color is a light wave. It exists because there are three entities: Light, observed object, and observer. The human eye uses color as a light wave formed by the observed object absorbing or reflecting different wavelengths. For example, whe