How to capture raw image from android camera

Question

The takePicture rawCallback returns a null pointer. The getPictureFormat only allows for .jpg. While the jpeg can be improved with getParameters() setJpegQuality(100) setPar

Answer 1

//Ugly code to convert bayer to rgb

//test__1604x1206_10_2b.raw
//test__1284x966_10_3.raw
#include 
    unsigned short int bayerImage[2500][3500]; //times 3 allows for forming an RGB image for debugging
    unsigned char bmpImage[30000000]; //times 3 allows for forming an RGB image for debugging
#include 
#include 
#include "bayer2rgb.h"
#include 
#include 

/*****************************************************************************
**
*/

int DumpImage( char* pszFilename, BYTE* pImage, int bmpWidth, int bmpHeight,int bmpBits,int bmpFormat)
{
    FILE     *bayerFile;
    FILE     *rgbFile;
    int x,y;
    unsigned char lowOrder,highOrder;
    unsigned char bmpchar;
    unsigned short bayerVal;

    unsigned char bmpheader[62];
    char  FullFilename[MY_MAX_PATH];
    unsigned int  bmrgbFilesize;
    unsigned int minPixel=100000;
    unsigned int maxPixel=0;
    static unsigned int rgbValues[4][1024];

    /*expecting 10 bit bayer */
    if(bmpBits!=10)
    {
        printf("invalid bit specification\n");
        return(-1);
    }
    if(bmpHeight >= 0)
    {
        bmrgbFilesize = (((bmpWidth*24+31)/32)*4)*bmpHeight;
    }
    else
    {
        bmrgbFilesize = (((bmpWidth*24+31)/32)*4)*(-bmpHeight);
    }

    #ifdef LINUX

      strcpy( FullFilename, pszFilename );

      rgbFile = fopen( FullFilename, "w+b" );

      if( rgbFile )

    #else

      strcpy_s( FullFilename, sizeof(FullFilename), pszFilename );

      errno_t  errno;
      errno = fopen_s( &bayerFile, FullFilename, "r+b" );  
      if(errno == 0)
      {
          printf("size %d", strlen(FullFilename)-4);
        memcpy(&FullFilename[strlen(FullFilename)-4],".bmp",4);
        errno = fopen_s( &rgbFile, FullFilename, "w+b" );  
      }
      if ( errno == 0 )
    #endif
    {

/*    0 1 2 3 4 5     0 1 2 3 4 5     0 1 2 3 4 5 */
/*  0 R G R G R G   0 G R G R G R   0 B G B G B G */
/*  1 G B G B G B   1 B G B G B G   1 G R G R G R */
/*  2 R G R G R G   2 G R G R G R   2 B G B G B G */
/*  3 G B G B G B   3 B G B G B G   3 G R G R G R */



        memset(bmpImage,255,sizeof(bmpImage));
        switch(bmpFormat)
        {
        case 2:
//            0 1 2 3 4 5
//          0 G R G R G R
//          1 B G B G B G
//          2 G R G R G R
//          3 B G B G B G
            for(y=0;ymaxPixel)
                    {
                        maxPixel=bayerVal;
                    }
                    if(y%2==0)
                    {
                        if(x%2==0)
                        {
                            //green
                            bayerImage[y][x]=bayerVal/2;
                            //if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.65;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[0][bayerVal]++;
                        }
                        else
                        {
                            //red
                            bayerImage[y][x]=bayerVal/2;
                            //if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.85;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[1][bayerVal]++;
                        }
                    }
                    else
                    {
                        if(x%2==0)
                        {
                            //blue
                            bayerImage[y][x]=bayerVal/2;
                            //if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.85;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[2][bayerVal]++;
                        }
                        else
                        {
                            //green
                            bayerImage[y][x]=bayerVal/2;
                            //if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.65;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[3][bayerVal]++;
                        }
                    }
                 }
            }
            for(y=1;ymaxPixel)
                    {
                        maxPixel=bayerVal;
                    }
                    if(y%2==0)
                    {
                        if(x%2==0)
                        {
                            //red
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.85;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[1][bayerVal]++;
                        }
                        else
                        {
                            //green
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            bayerImage[y][x]*=.65;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[0][bayerVal]++;
                        }
                    }
                    else
                    {
                        if(x%2==0)
                        {
                            //green
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            bayerImage[y][x]*=.65;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[3][bayerVal]++;
                        }
                        else
                        {
                            //blue
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.85;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[2][bayerVal]++;
                        }
                    }
                 }
            }
            for(y=1;ymaxPixel)
                    {
                        maxPixel=bayerVal;
                    }
                    if(y%2==0)
                    {
                        if(x%2==0)
                        {
                            //green
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            bayerImage[y][x]*=.65;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[0][bayerVal]++;
                        }
                        else
                        {
                            //red
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.85;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[1][bayerVal]++;
                        }
                    }
                    else
                    {
                        if(x%2==0)
                        {
                            //blue
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            //bayerImage[y][x]*=.85;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[2][bayerVal]++;
                        }
                        else
                        {
                            //green
                            bayerImage[y][x]=bayerVal;
                            if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            bayerImage[y][x]*=.65;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[3][bayerVal]++;
                        }
                    }
                 }
            }
            for(y=1;ymaxPixel)
                    {
                        maxPixel=bayerVal;
                    }
                    if(y%2==0)
                    {
                        if(x%2==0)
                        {
                            //green
                            bayerImage[y][x]=bayerVal;
                            //if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            bayerImage[y][x]/=256;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[0][bayerVal]++;
                        }
                        else
                        {
                            //red
                            bayerImage[y][x]=bayerVal;
                            //if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            bayerImage[y][x]/=256;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[1][bayerVal]++;
                        }
                    }
                    else
                    {
                        if(x%2==0)
                        {
                            //blue
                            bayerImage[y][x]=bayerVal;
                            //if (bayerImage[y][x] >= 10) bayerImage[y][x]-=10; else bayerImage[y][x]=0;
                            bayerImage[y][x]/=256;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[2][bayerVal]++;
                        }
                        else
                        {
                            //green
                            bayerImage[y][x]=bayerVal;
                            //if (bayerImage[y][x] >= 20) bayerImage[y][x]-=20; else bayerImage[y][x]=0;
                            bayerImage[y][x]/=256;
                            if(bayerImage[y][x]>255) 
                                bayerImage[y][x]=255;
                            rgbValues[3][bayerVal]++;
                        }
                    }
                 }
            }
            for(y=1;y