这样一个rgba(1,0,0,1) 如果我们要把它转换成 0-255范围 就是rgb分别乘以255 就是rgba(255,0,0,255) 0-255转0-1范围 如rgba(34,56,56,1)转为0-1范围就是 r = 34/255 g = 56/255 b = 56/255 a不参与转换
RGBA的值0-255范围如何转换成0-1范围这样⼀个rgba（1，0，0，1）如果我们要把它转换成 0-255范围就是rgb分别乘以255 就是 rgba（255，0，0，255）0-255转0-1范围 如 rgba（34，56，56，1）转为0-1范围就是 r = 34/255 g = 56/255 b = 56/255 a不参与转换 ...
dodgerblue#1e90ff30, 144, 255210, 100%, 56% cornflowerblue#6495ed100, 149, 237219, 79%, 66% mediumslateblue#7b68ee123, 104, 238249, 80%, 67% royalblue#4169e165, 105, 225225, 73%, 57% blue#0000ff0, 0, 255240, 100%, 50% ...
56 94 15 #385E0F 白色 225 225 225 #FFFFFF 瓜色 227 168 105 #E3A869 靛青 8 46 84 #082E54 古董白 250 235 215 #FAEBD7 橙色 255 97 0 #FF6100 碧绿色 127 255 212 #7FFFD4 天蓝色 240 255 255 #F0FFFF 镉橙 255 97 ...
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dodgerblue#1e90ff30, 144, 255210, 100%, 56% cornflowerblue#6495ed100, 149, 237219, 79%, 66% mediumslateblue#7b68ee123, 104, 238249, 80%, 67% royalblue#4169e165, 105, 225225, 73%, 57% blue#0000ff0, 0, 255240, 100%, 50% ...
[sp, #56] ; 0x38 41208: 9a08 ldr r2, [sp, #32] 4120a: 1c53 adds r3, r2, #1 4120c: 9308 str r3, [sp, #32] 4120e: 5488 strb r0, [r1, r2] 41210: f817 0c31 ldrb.w r0, [r7, #-49] 41214: 990e ldr r1, [sp, #56] ; 0x38 41216: 9a08 ldr r2, [sp, #32] ...
// 意思是每4个 Y 像素(上下左右,不是横向连续的四个)对应1个 V 和1个 U // 像素和其他扫描线。 yuv420sp[yIndex++]=Y; if(j%2==0&&i%2==0) { yuv420sp[uvIndex++]=V; yuv420sp[uvIndex++]=U; } } } } 1. 2. 3. 4. ...
Result! The result: Result! In RGBA, you can make it lighter by saying: Result! The result: Result! This is a much paler purple than above. You can also use the same code for RGBA as you did with RGB, but with the Alpha value, so you don't need to have rgba, just rgb!
RGBA设置颜⾊ #define UIColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]#define UIColorFromRGBA(rgbValue) [UIColor colorWithRed:((...