Blackberry Image processing(sketch effect and charcoal effect) - image-processing

Question

I am new to blackberry.
I am trying to convert normal image into sketch effect.I have code to do that in ANDROID.
I have tried to implement it in Blackberry but unable to got output.Here is android code and my blackberry code.
This is android code-
public class ConvolutionMatrix
{
public static final int SIZE = 3;
public double[][] Matrix;
public double Factor = 1;
public double Offset = 1;
public ConvolutionMatrix(int size) {
Matrix = new double[size][size];
}
public void setAll(double value) {
for (int x = 0; x < SIZE; ++x) {
for (int y = 0; y < SIZE; ++y) {
Matrix[x][y] = value;
}
}
}
public void applyConfig(double[][] config) {
for(int x = 0; x < SIZE; ++x) {
for(int y = 0; y < SIZE; ++y) {
Matrix[x][y] = config[x][y];
}
}
}
public static Bitmap computeConvolution3x3(Bitmap src, ConvolutionMatrix matrix) {
int width = src.getWidth();
int height = src.getHeight();
Bitmap result = Bitmap.createBitmap(width, height, src.getConfig());
int A, R, G, B;
int sumR, sumG, sumB;
int[][] pixels = new int[SIZE][SIZE];
for(int y = 0; y < height - 2; ++y) {
for(int x = 0; x < width - 2; ++x) {
// get pixel matrix
for(int i = 0; i < SIZE; ++i) {
for(int j = 0; j < SIZE; ++j) {
pixels[i][j] = src.getPixel(x + i, y + j);
}
}
// get alpha of center pixel
A = Color.alpha(pixels[1][1]);
// init color sum
sumR = sumG = sumB = 0;
// get sum of RGB on matrix
for(int i = 0; i < SIZE; ++i) {
for(int j = 0; j < SIZE; ++j) {
sumR += (Color.red(pixels[i][j]) * matrix.Matrix[i][j]);
sumG += (Color.green(pixels[i][j]) * matrix.Matrix[i][j]);
sumB += (Color.blue(pixels[i][j]) * matrix.Matrix[i][j]);
}
}
// get final Red
R = (int)(sumR / matrix.Factor + matrix.Offset);
if(R < 0) { R = 0; }
else if(R > 255) { R = 255; }
// get final Green
G = (int)(sumG / matrix.Factor + matrix.Offset);
if(G < 0) { G = 0; }
else if(G > 255) { G = 255; }
// get final Blue
B = (int)(sumB / matrix.Factor + matrix.Offset);
if(B < 0) { B = 0; }
else if(B > 255) { B = 255; }
// apply new pixel
result.setPixel(x + 1, y + 1, Color.argb(A, R, G, B));
}
}
// final image
return result;
}
}
and following is my Blackberry code that I have tried-
public ConvolutionMatrix(int size) {
Matrix = new double[size][size];
}
public void setAll(double value) {
for (int x = 0; x < SIZE; ++x) {
for (int y = 0; y < SIZE; ++y) {
Matrix[x][y] = value;
}
}
}
public void applyConfig(double[][] config) {
for(int x = 0; x < SIZE; ++x) {
for(int y = 0; y < SIZE; ++y) {
Matrix[x][y] = config[x][y];
}
}
}
public static Bitmap computeConvolution3x3(Bitmap src, ConvolutionMatrix matrix) {
int width = src.getWidth();
int height = src.getHeight();
int A, R, G, B;
int sumR, sumG, sumB;
int[] argb= new int[width*height];
int[][]newargb=new int[width][height];
src.getARGB(argb, 0, width, 0, 0, width, height);
for(int y=0;y<=height;y++)
{
for (int x=0;x<=width;x++)
{
System.out.println(""+x);
System.out.println(""+y);
newargb[y][x]=argb[width*y+x];
}
}
int[][] pixels = new int[SIZE][SIZE];
for(int y = 0; y < height - 2; ++y) {
for(int x = 0; x < width - 2; ++x) {
// get pixel matrix
for(int i = 0; i < SIZE; ++i) {
for(int j = 0; j < SIZE; ++j) {
pixels[i][j] = newargb[x + i][ y + j];
}
}
A=pixels[1][1];
sumR = sumG = sumB = 0;
for(int i = 0; i < SIZE; ++i) {
for(int j = 0; j < SIZE; ++j) {
A =pixels[i][j] >> 24;
R =pixels[i][j]>> 16 & 0xFF;
G =pixels[i][j] >> 8 & 0xFF;
B =pixels[i][j] & 0xFF;
sumR += (R * matrix.Matrix[i][j]);
sumG += (G * matrix.Matrix[i][j]);
sumB += (B * matrix.Matrix[i][j]);
}
}
// get final Red
R = (int)(sumR / matrix.Factor + matrix.Offset);
if(R < 0) { R = 0; }
else if(R > 255) { R = 255; }
// get final Green
G = (int)(sumG / matrix.Factor + matrix.Offset);
if(G < 0) { G = 0; }
else if(G > 255) { G = 255; }
// get final Blue
B = (int)(sumB / matrix.Factor + matrix.Offset);
if(B < 0) { B = 0; }
else if(B > 255) { B = 255; }
for(int i = 0; i < SIZE; ++i) {
for(int j = 0; j < SIZE; ++j) {
pixels[i][j]=(A << 24) | (R << 16) | (G << 8) | B;
newargb[x ][ y]=pixels[i][j];
}
}
}
}
for(int y=0;y<=height;y++)
{
for (int x=0;x<=width;x++)
{
argb[width*y+x]=newargb[y][x];
}
}
src.setARGB(argb, 0, width, 0, 0, width, height);
return src;
}
}
Common Code for both android and Blackberry-
public Bitmap EmbossImage(Bitmap src) {
System.out.println("In Emboss Effect Image method");
double[][] SharpConfig = new double[][] {
{ 0 , -1, 0 },
{ -1, 5, -1 },
{ 0 , -1, 0 }
};
ConvolutionMatrix convMatrix = new ConvolutionMatrix(3);
convMatrix.setAll(0);
convMatrix.applyConfig(SharpConfig);
convMatrix.Factor = 1;
convMatrix.offset=130;
return ConvolutionMatrix.computeConvolution3x3(src, convMatrix);
}

Answer 1

I have found the answer for my own question.I found convolution related code from this site:
android image processing.
See in the comments part on this link page.
This is android code.Just make it compatible it for blackberry by changing Color class methods.