Example usage for android.graphics Bitmap getPixel

Introduction

In this page you can find the example usage for android.graphics Bitmap getPixel.

Prototype

@ColorInt
public int getPixel(int x, int y)

Source Link

Document

Returns the Color at the specified location.

Usage

From source file:Main.java

/**
 * Returns true if we should add padding to this icon. We use a heuristic that if the pixels in
 * all four corners of the icon are not transparent, we assume the icon is square and maximally
 * sized, i.e. in need of padding. Otherwise, no padding is added.
 *///from w w  w .  j ava  2  s . c  om
private static boolean shouldPadIcon(Bitmap icon) {
    int maxX = icon.getWidth() - 1;
    int maxY = icon.getHeight() - 1;

    if ((Color.alpha(icon.getPixel(0, 0)) != 0) && (Color.alpha(icon.getPixel(maxX, maxY)) != 0)
            && (Color.alpha(icon.getPixel(0, maxY)) != 0) && (Color.alpha(icon.getPixel(maxX, 0)) != 0)) {
        return true;
    }
    return false;
}

From source file:Main.java

public static double getPixel(int x, int y, Bitmap bitmap) {
    if (x < 0 || x >= bitmap.getWidth() || y < 0 || y >= bitmap.getHeight())
        return 0;
    return bitmap.getPixel(x, y);
}

From source file:Main.java

public static boolean hasTransparentCorners(Bitmap bitmap) {
    int width = bitmap.getWidth() - 1;
    int height = bitmap.getHeight() - 1;
    return bitmap.getPixel(0, 0) == Color.TRANSPARENT || bitmap.getPixel(width, 0) == Color.TRANSPARENT
            || bitmap.getPixel(0, height) == Color.TRANSPARENT
            || bitmap.getPixel(width, height) == Color.TRANSPARENT;
}

From source file:Main.java

public static boolean hasTransparentCorners(@NonNull Bitmap bitmap) {
    int right = bitmap.getWidth() - 1;
    int bottom = bitmap.getHeight() - 1;
    return bitmap.getPixel(0, 0) == Color.TRANSPARENT || bitmap.getPixel(right, 0) == Color.TRANSPARENT
            || bitmap.getPixel(0, bottom) == Color.TRANSPARENT
            || bitmap.getPixel(right, bottom) == Color.TRANSPARENT;
}

From source file:Main.java

public static int colorDrawableGetColor(ColorDrawable d) {
    try {//from  w ww  . j  a v a  2 s .  c om
        Method getColor = d.getClass().getMethod("getColor");
        return (Integer) getColor.invoke(d);
    } catch (NoSuchMethodException ignore) {
    } catch (InvocationTargetException ignore) {
    } catch (IllegalAccessException ignore) {
    } catch (ClassCastException ignore) {
    }

    // For some reason the following doesn't work on Android 15, but the above does, and the below
    // works for Android <= 10, so the function as a whole works but is a dirty hack.

    Bitmap b = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888);
    d.draw(new Canvas(b));
    return b.getPixel(0, 0);
}

From source file:Main.java

/**
 * Fill the hole in the image (version 2)
 *//*  w  ww  .  j a va  2  s .c  o  m*/
public static void fillHole2(Bitmap bmp) {

    for (int j = 1; j < bmp.getWidth(); j++) {
        for (int i = 1; i < bmp.getHeight() - 1; i++) {
            if ((bmp.getPixel(i, j) == Color.TRANSPARENT) && (bmp.getPixel(i + 1, j) != Color.TRANSPARENT)) {
                bmp.setPixel(i, j, bmp.getPixel(i + 1, j)); // set to the next-below pixel
            }
        }
    }
}

From source file:Main.java

/**
 * Fill the hole in the image (version 1)
 *///from w ww  . j  a  va  2  s  .c o m
public static void fillHole1(Bitmap bmp) {

    for (int j = 1; j < bmp.getWidth() - 1; j++) {
        for (int i = 1; i < bmp.getHeight(); i++) {
            if ((bmp.getPixel(i, j) == Color.TRANSPARENT) && (bmp.getPixel(i, j + 1) != Color.TRANSPARENT)) {
                bmp.setPixel(i, j, bmp.getPixel(i, j + 1)); // set to the right-next pixel
            }
        }
    }
}

From source file:Main.java

private static float[] getMainHSV(Bitmap bm) {
    Bitmap onePixelBitmap = Bitmap.createScaledBitmap(bm, 1, 1, true);
    int pixel = onePixelBitmap.getPixel(0, 0);

    int red = Color.red(pixel);
    int blue = Color.blue(pixel);
    int green = Color.green(pixel);

    float[] hsvVals = new float[3];
    Color.RGBToHSV(red, green, blue, hsvVals);
    return hsvVals;
}

From source file:Main.java

public static int getHighlightColorFromBackground(final Activity activity) {
    int incolor = Color.BLACK;
    final Bitmap screenshot1px = getScaledScreenshot(activity, 1, 1, false);
    if (null != screenshot1px) {
        incolor = screenshot1px.getPixel(0, 0);
    }//from  w w  w. j  av a2 s  .c om
    return getHighlightColor(incolor);
}

From source file:Main.java

public static Bitmap cropBorders(Bitmap bitmap, int width, int height) {
    int top = 0;// ww w.  j  a  v a 2  s.  c om
    for (int i = 0; i < height / 2; i++) {
        int pixel1 = bitmap.getPixel(width / 2, i);
        int pixel2 = bitmap.getPixel(width / 2, height - i - 1);
        if ((pixel1 == 0 || pixel1 == -16777216) && (pixel2 == 0 || pixel2 == -16777216)) {
            top = i;
        } else {
            break;
        }
    }

    int left = 0;
    for (int i = 0; i < width / 2; i++) {
        int pixel1 = bitmap.getPixel(i, height / 2);
        int pixel2 = bitmap.getPixel(width - i - 1, height / 2);
        if ((pixel1 == 0 || pixel1 == -16777216) && (pixel2 == 0 || pixel2 == -16777216)) {
            left = i;
        } else {
            break;
        }
    }

    if (left >= width / 2 - 10 || top >= height / 2 - 10)
        return bitmap;

    // Cut off the transparency on the borders
    return Bitmap.createBitmap(bitmap, left, top, (width - (2 * left)), (height - (2 * top)));
}