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Description: YUV转RGB的源程序，使用到了硬件加速器，可利用FGPA的乘法器加速处理速度。-YUV to RGB source, the use of a hardware accelerator, FGPA can be used to speed up the processing speed multiplier.
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Size: 107520 |
Author: cloud |
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Description: YCrCb即YUV，其中“Y”表示明亮度（Luminance或Luma），也就是灰阶值；而“U”和“V” 表示的则是色度（Chrominance或Chroma），作用是描述影像色彩及饱和度，用于指定像素的颜色。“亮度”是透过RGB输入信号来建立的，方法是将RGB信号的特定部分叠加到一起。“色度”则定义了颜色的两个方面─色调与饱和度，分别用Cr和CB来表示。其中，Cr反映了RGB输入信号红色部分与RGB信号亮度值之间的差异。而CB反映的是RGB输入信号蓝色部分与RGB信号亮度值之间的差异。-YCrCb YUV namely, of which "Y" expresses bright degree (Luminance or Luma), also is the grey-scale values And "U" and "V" said is Chroma (Chrominance or Chroma), the function is to describe the image color and saturation, is used to specify the color of the pixels. "Brightness" is through the establishment of the input signal to RGB, method is to RGB signal certain part of the stack together. "Color" is the definition of the color two aspects ─ the tone and saturation, respectively for Cr and CB to said. Whether to hold or participate in the campus lectures is necessary.ignal brightness values differences. And CB reflects the input signal blue part and RGB RGB signal brightness values differences.
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Size: 1024 |
Author: liyy |
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Description: JPEG采用的是YCrCb颜色空间，而BMP采用的是RGB颜色空间，要想对BMP图片进行压缩，首先需要进行颜色空间的转换。YCrCb颜色空间中，Y代表亮度，Cr,Cb则代表色度和饱和度(也有人将Cb,Cr两者统称为色度)，三者通常以Y,U,V来表示-JPEG is used in YCrCb color space, and BMP is used in RGB color space, to compress the BMP image, we need to perform color space conversion. In YCrCb color space, Y represents the brightness, Cr, Cb represents the hue and saturation (there are Cb, Cr both collectively referred to as chroma), three Y as usual, U, V.
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Size: 370688 |
Author: sdf3 |
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