Android Utililty Methods Bitmap Color Get

List of utility methods to do Bitmap Color Get

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Description

The list of methods to do Bitmap Color Get are organized into topic(s).

Method

intcountSE(Bitmap bitmap, int[][] se)
count SE 
int hlen = bitmap.getWidth(), vlen = bitmap.getHeight();
int toReturn = 0;
for (int i = vlen - 1; i >= 0; i--) {
    for (int j = hlen - 1; j >= 0; j--) {
        if (kernelMatch(j, i, hlen, vlen, bitmap, se)) {
            toReturn++;
return toReturn;
intgetContactCount(Bitmap bitmap)
get Contact Count 
int toReturn = 0;
int hlen = bitmap.getWidth(), vlen = bitmap.getHeight();
for (int i = 0; i < vlen; i++) {
    for (int j = 0; j < hlen; j++) {
        if ((bitmap.getPixel(j, i) & 0xff) > 0) {
            if (j + 1 < hlen
                    && (bitmap.getPixel(j + 1, i) & 0xff) > 0) {
                toReturn++;
...
intgetPixelsCount(Bitmap bitmap)
get Pixels Count 
int hlen = bitmap.getWidth(), vlen = bitmap.getHeight();
int toReturn = 0;
for (int i = 0; i < vlen; i++) {
    for (int j = 0; j < hlen; j++) {
        if ((bitmap.getPixel(j, i) & 0xff) > 0) {
            toReturn++;
return toReturn;
booleankernelMatch(int x, int y, int w, int h, Bitmap bitmap, int[][] se)
kernel Match 
int lenh = se[0].length, lenv = se.length;
for (int i = 0; i < lenv; i++) {
    for (int j = 0; j < lenh; j++) {
        int pVal = ((bitmap.getPixel((x + j) % w, (y + i) % h) & 0xff) > 0 ? 1
                : 0);
        if (se[i][j] != pVal) {
            return false;
return true;
int[]getColorHistogram(Bitmap bitmap)
get Color Histogram 
int width = bitmap.getWidth();
int height = bitmap.getHeight();
int[] areaColor = new int[64];
for (int i = 0; i < width; i++) {
    for (int j = 0; j < height; j++) {
        int pixels = bitmap.getPixel(i, j);
        int alpha = (pixels >> 24) & 0xFF;
        int red = (pixels >> 16) & 0xFF;
...
booleanisBitmapWhiteAtTopOrBottom(Bitmap largeBitmap)
Returns true if 20% of the image's top right corner is white, or 20% of the bottom of the image is white. 
Trace.beginSection("isBitmapWhiteAtTopOrBottom");
try {
    final Bitmap smallBitmap = scaleBitmapDown(largeBitmap);
    final int[] rgbPixels = new int[smallBitmap.getWidth()
            * smallBitmap.getHeight()];
    smallBitmap.getPixels(rgbPixels, 0, smallBitmap.getWidth(), 0,
            0, smallBitmap.getWidth(), smallBitmap.getHeight());
    int whiteCount = 0;
...