How to convert bitmap byte nude data into bitmap picture int data in Android

How to convert bitmap byte nude data to bitmap images in Android int data 2014-06-11 10:45:14 read 375 times

We processed the BMP image raw data in jni, how should we convert it to bitmap?

Because the resulting data is unsigned char * type data, and for bitmap class, its class method inside:

12	publicstatic Bitmap createBitmap(int colors[], int offset, int stride,            int width, intheight, Config config)

Required to pass in int * data, here we need to convert unsigned char * data to an int value of RGB.

The Java method can take the following code:

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publicstaticintconvertByteToInt(bytedata){                int heightBit = (int) ((data>>4) & 0x0F);        intlowBit = (int) (0x0F& data);        returnheightBit * 16+ lowBit;    }        publicstaticint[] convertByteToColor(byte[] data){        intsize = data.length;        if(size == 0){            returnnull;        }                intarg = 0;        if(size % 3!= 0){            arg = 1;        }                int[]color = newint[size / 3+ arg];        intred, green, blue;                if(arg == 0){            for(int i = 0; i < color.length; ++i){                red = convertByteToInt(data[i * 3]);                green = convertByteToInt(data[i * 3+ 1]);                blue = convertByteToInt(data[i * 3+ 2]);                                                   color[i] = (red << 16) | (green << 8) | blue | 0xFF000000;              }        }else{            for(inti = 0; i < color.length - 1; ++i){                red = convertByteToInt(data[i * 3]);                green = convertByteToInt(data[i * 3 + 1]);                blue = convertByteToInt(data[i * 3+ 2]);                   color[i] = (red << 16) | (green << 8) | blue | 0xFF000000;              }                        color[color.length - 1] = 0xFF000000;        }            returncolor;    }    Bitmap decodeFrameToBitmap(byte[] frame)     {        int[]colors = convertByteToColor(frame);        if(colors == null){            returnnull;        }        Bitmap bmp = Bitmap.createBitmap(colors, 0, 1280, 1280, 720,Bitmap.Config.ARGB_8888);                               return bmp;    }

The code does not explain, has the question blog to mention, will answer.

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How to convert bitmap byte nude data into bitmap picture int data in Android