public static Bitmap rotateBmp(Bitmap bmp, int angle) {
int width = bmp.getWidth();
int height = bmp.getHeight();
Matrix matrix = new Matrix();
matrix.postRotate(angle);
return Bitmap.createBitmap(bmp, 0, 0, width, height, matrix, true);
}
public static Bitmap roundedCornerBitmap(Bitmap bitmap, float radis) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
// final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
final float roundPx = radis;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(Color.WHITE);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
public static Bitmap zoomImage(Bitmap bmp, double newWidth, double newHeight) {
float width = bmp.getWidth();
float height = bmp.getHeight();
Matrix matrix = new Matrix();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
matrix.postScale(scaleWidth, scaleHeight);
Bitmap bitmap = Bitmap.createBitmap(bmp, 0, 0, (int) width, (int) height, matrix, true);
return bitmap;
}
public static Bitmap matrixBmp(Bitmap bmp, int margin) {
int width = bmp.getWidth();
int height = bmp.getHeight();
int px = UIUtils.dipToPx(margin);
Matrix matrix = new Matrix();
if (width > UIUtils.getWidth() - px) {
float scale = ((float) (UIUtils.getWidth() - px) / width);
matrix.postScale(scale, scale);
} else {
matrix.postScale(1, 1);
}
return Bitmap.createBitmap(bmp, 0, 0, width, height, matrix, true);
}
public static Bitmap colorMatrixBmp(Bitmap bmp, float[] matrixSrc) {
int width = bmp.getWidth();
int height = bmp.getHeight();
ColorMatrix matrix = new ColorMatrix();
matrix.set(matrixSrc);
ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);
Paint p = new Paint();
p.setColorFilter(filter);
Bitmap colorBmp = Bitmap.createBitmap(width, height, bmp.getConfig());
Canvas c = new Canvas(colorBmp);
c.drawBitmap(bmp, 0, 0, p);
return colorBmp;
}
public static Bitmap flipBmp(Bitmap bmp, int mode) {
// mode 1: h, 2:v
int width = bmp.getWidth();
int height = bmp.getHeight();
Matrix matrix = new Matrix();
Matrix temp = new Matrix();
float[] mirrorY = {-1, 0, 0, 0, 1, 0, 0, 0, 1};
temp.setValues(mirrorY);
matrix.postConcat(temp);
if (mode == 2) {
matrix.setRotate(180, width / 2, height / 2);
}
return Bitmap.createBitmap(bmp, 0, 0, width, height, matrix, true);
}
public static Bitmap blackWhiteBmp(Bitmap bmp) {
// black and white
int width = bmp.getWidth();
int height = bmp.getHeight();
ColorMatrix matrix = new ColorMatrix();
float[] src = {
0.308F, 0.609F, 0.082F, 0, 0, 0.308F, 0.609F, 0.082F, 0, 0, 0.308F, 0.609F, 0.082F, 0, 0, 0,
0, 0, 1, 0
};
matrix.set(src);
ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);
Paint p = new Paint();
p.setColorFilter(filter);
Bitmap colorBmp = Bitmap.createBitmap(width, height, bmp.getConfig());
Canvas c = new Canvas(colorBmp);
c.drawBitmap(bmp, 0, 0, p);
return colorBmp;
}
public static Bitmap blurBmp(Bitmap bmp, int Blur) {
int pixels[] = new int[bmp.getWidth() * bmp.getHeight()];
int pixelsRawSource[] = new int[bmp.getWidth() * bmp.getHeight() * 3];
int pixelsRawNew[] = new int[bmp.getWidth() * bmp.getHeight() * 3];
bmp.getPixels(pixels, 0, bmp.getWidth(), 0, 0, bmp.getWidth(), bmp.getHeight());
for (int k = 1; k <= Blur; k++) {
for (int i = 0; i < pixels.length; i++) {
pixelsRawSource[i * 3 + 0] = Color.red(pixels[i]);
pixelsRawSource[i * 3 + 1] = Color.green(pixels[i]);
pixelsRawSource[i * 3 + 2] = Color.blue(pixels[i]);
}
int CurrentPixel = bmp.getWidth() * 3 + 3;
for (int i = 0; i < bmp.getHeight() - 3; i++) {
for (int j = 0; j < bmp.getWidth() * 3; j++) {
CurrentPixel += 1;
int sumColor = 0;
sumColor = pixelsRawSource[CurrentPixel - bmp.getWidth() * 3];
sumColor = sumColor + pixelsRawSource[CurrentPixel - 3];
sumColor = sumColor + pixelsRawSource[CurrentPixel + 3];
sumColor = sumColor + pixelsRawSource[CurrentPixel + bmp.getWidth() * 3];
pixelsRawNew[CurrentPixel] = Math.round(sumColor / 4);
}
}
for (int i = 0; i < pixels.length; i++) {
pixels[i] =
Color.rgb(pixelsRawNew[i * 3 + 0], pixelsRawNew[i * 3 + 1], pixelsRawNew[i * 3 + 2]);
}
}
Bitmap bmpReturn = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), Config.ARGB_8888);
bmpReturn.setPixels(pixels, 0, bmp.getWidth(), 0, 0, bmp.getWidth(), bmp.getHeight());
return bmpReturn;
}