Example usage for android.graphics Bitmap setPixels

Introduction

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

Prototype

public void setPixels(@ColorInt int[] pixels, int offset, int stride, int x, int y, int width, int height) 

Source Link

Document

Replace pixels in the bitmap with the colors in the array.

Usage

From source file:Main.java

public static Bitmap reliefImage(Bitmap bm) {

    int width = bm.getWidth();
    int height = bm.getHeight();
    int color;/* w w w.j a va 2 s  .  c o m*/
    int r, g, b, a;

    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    int[] oldPx = new int[width * height];
    int[] newPx = new int[width * height];

    bm.getPixels(oldPx, 0, width, 0, 0, width, height);

    for (int i = 1; i < oldPx.length; i++) {
        color = oldPx[i - 1];
        r = Color.red(color);
        g = Color.green(color);
        b = Color.blue(color);
        a = Color.alpha(color);

        int nextColor = oldPx[i];
        int r1 = Color.red(nextColor);
        int g1 = Color.green(nextColor);
        int b1 = Color.blue(nextColor);

        r = r1 - r + 127;
        g = g1 - g + 127;
        b = b1 - b + 127;

        if (r > 255) {
            r = 255;
        } else if (r < 0) {
            r = 0;
        }

        if (g > 255) {
            g = 255;
        } else if (g < 0) {
            g = 0;
        }

        if (b > 255) {
            b = 255;
        } else if (b < 0) {
            b = 0;
        }

        newPx[i] = Color.argb(a, r, g, b);
    }

    bitmap.setPixels(newPx, 0, width, 0, 0, width, height);
    return bitmap;
}

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From source file:Main.java

public static Bitmap emboss(Bitmap bmp) {
    int width = bmp.getWidth();
    int height = bmp.getHeight();
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);

    int pixR = 0;
    int pixG = 0;
    int pixB = 0;

    int pixColor = 0;

    int newR = 0;
    int newG = 0;
    int newB = 0;

    int[] pixels = new int[width * height];
    bmp.getPixels(pixels, 0, width, 0, 0, width, height);
    int pos = 0;//  ww  w. ja v a2s  . c o m
    for (int i = 1, length = height - 1; i < length; i++) {
        for (int k = 1, len = width - 1; k < len; k++) {
            pos = i * width + k;
            pixColor = pixels[pos];

            pixR = Color.red(pixColor);
            pixG = Color.green(pixColor);
            pixB = Color.blue(pixColor);

            pixColor = pixels[pos + 1];
            newR = Color.red(pixColor) - pixR + 127;
            newG = Color.green(pixColor) - pixG + 127;
            newB = Color.blue(pixColor) - pixB + 127;

            newR = Math.min(255, Math.max(0, newR));
            newG = Math.min(255, Math.max(0, newG));
            newB = Math.min(255, Math.max(0, newB));

            pixels[pos] = Color.argb(255, newR, newG, newB);
        }
    }

    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

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From source file:Main.java

public static Bitmap emboss(Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Bitmap newBitmap = Bitmap.createBitmap(width, height, Config.RGB_565);

    int pixR = 0;
    int pixG = 0;
    int pixB = 0;

    int pixColor = 0;

    int newR = 0;
    int newG = 0;
    int newB = 0;

    int[] pixels = new int[width * height];
    bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
    int pos = 0;/*from   ww  w  . j  a va 2s . c o  m*/
    for (int i = 1, length = height - 1; i < length; i++) {
        for (int k = 1, len = width - 1; k < len; k++) {
            pos = i * width + k;
            pixColor = pixels[pos];

            pixR = Color.red(pixColor);
            pixG = Color.green(pixColor);
            pixB = Color.blue(pixColor);

            pixColor = pixels[pos + 1];
            newR = Color.red(pixColor) - pixR + 127;
            newG = Color.green(pixColor) - pixG + 127;
            newB = Color.blue(pixColor) - pixB + 127;

            newR = Math.min(255, Math.max(0, newR));
            newG = Math.min(255, Math.max(0, newG));
            newB = Math.min(255, Math.max(0, newB));

            pixels[pos] = Color.argb(255, newR, newG, newB);
        }
    }

    newBitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return newBitmap;
}

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From source file:com.linroid.pushapp.ui.home.DeviceTokenDialog.java

private Bitmap generateQrcode(String content, int size) {
    QRCodeWriter writer = new QRCodeWriter();
    try {/*from  w w w  .j a  v  a  2 s.c  o m*/
        EnumMap<EncodeHintType, Object> hint = new EnumMap<>(EncodeHintType.class);
        hint.put(EncodeHintType.CHARACTER_SET, "UTF-8");
        BitMatrix bitMatrix = writer.encode(content, BarcodeFormat.QR_CODE, size, size, hint);
        int width = bitMatrix.getWidth();
        int height = bitMatrix.getHeight();
        int[] pixels = new int[width * height];
        for (int y = 0; y < height; y++) {
            int offset = y * width;
            for (int x = 0; x < width; x++) {
                // pixels[offset + x] = bitMatrix.get(x, y) ? 0xFF000000
                // : 0xFFFFFFFF;
                pixels[offset + x] = bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF;
            }
        }

        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    } catch (Exception e) {
        return null;
    }
}

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From source file:Main.java

public static Bitmap effectChangeContrast(Bitmap bitmap, double effectLevel) {
    if (bitmap == null) {
        return bitmap;
    }//w w w .j av  a  2 s  .c o  m

    Bitmap dst = bitmap.copy(Bitmap.Config.ARGB_8888, true);

    int height = dst.getHeight();
    int width = dst.getWidth();
    int[] pixels = new int[(width * height)];
    dst.getPixels(pixels, 0, width, 0, 0, width, height);

    for (int YY = 0; YY < width; ++YY) {
        for (int XX = 0; XX < height; ++XX) {
            int bitmapColor = pixels[(YY + XX * width)];
            int[] color = { Color.red(bitmapColor), Color.green(bitmapColor), Color.blue(bitmapColor) };

            if (color[0] > 200 && color[1] > 200 && color[3] > 200) {
                color[0] = 255;
                color[1] = 255;
                color[2] = 255;
            }

            for (int i = 0; i < color.length; i++) {
                int tmpColor = color[i];
                tmpColor = (int) ((tmpColor - 128) * effectLevel + 128);
                if (tmpColor < 0) {
                    tmpColor = 0;
                } else if (tmpColor > 255) {
                    tmpColor = 255;
                }
                color[i] = tmpColor;
            }

            pixels[(YY + XX * width)] = Color.rgb(color[0], color[1], color[2]);
        }
    }

    dst.setPixels(pixels, 0, width, 0, 0, width, height);
    return dst;
}

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From source file:com.aegiswallet.utils.BasicUtils.java

public static Bitmap encodeAsBitmap(String contents, BarcodeFormat format, int dimension) {

    Bitmap bitmap = null;

    try {/* w  ww  .ja v  a2  s  . co m*/
        final Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
        //hints.put(EncodeHintType.MARGIN, 0);
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        final BitMatrix result = qrCodeWriter.encode(contents, BarcodeFormat.QR_CODE, dimension, dimension,
                hints);

        final int width = result.getWidth();
        final int height = result.getHeight();
        final int[] pixels = new int[width * height];

        for (int y = 0; y < height; y++) {
            final int offset = y * width;
            for (int x = 0; x < width; x++) {
                pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.WHITE;
            }
        }

        bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;

    } catch (WriterException e) {
        Log.e("Basic Utils", "cannot write to bitmap " + e.getMessage());
    }
    return bitmap;
}

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From source file:jahirfiquitiva.iconshowcase.utilities.Utils.java

@SuppressWarnings("ConstantConditions")
public static Bitmap getBitmapWithReplacedColor(@NonNull Bitmap bitmap, @ColorInt int colorToReplace,
        @ColorInt int replaceWith) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int[] pixels = new int[width * height];
    bitmap.getPixels(pixels, 0, width, 0, 0, width, height);

    int minX = width;
    int minY = height;
    int maxX = -1;
    int maxY = -1;

    Bitmap newBitmap = Bitmap.createBitmap(width, height, bitmap.getConfig());
    int pixel;/*from  ww  w .j av a 2 s .c  om*/

    for (int y = 0; y < height; ++y) {
        for (int x = 0; x < width; ++x) {
            int index = y * width + x;
            pixel = pixels[index];
            if (pixel == colorToReplace) {
                pixels[index] = replaceWith;
            }
            if (pixels[index] != replaceWith) {
                if (x < minX)
                    minX = x;
                if (x > maxX)
                    maxX = x;
                if (y < minY)
                    minY = y;
                if (y > maxY)
                    maxY = y;
            }
        }
    }

    newBitmap.setPixels(pixels, 0, width, 0, 0, width, height);

    return Bitmap.createBitmap(newBitmap, minX, minY, (maxX - minX) + 1, (maxY - minY) + 1);
}

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From source file:com.bonsai.btcreceive.ReceiveFragment.java

private Bitmap createBitmap(String content, final int size) {
    final Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
    hints.put(EncodeHintType.MARGIN, 0);
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    BitMatrix result;//from www.j  av  a2s  . c  o  m
    try {
        result = sQRCodeWriter.encode(content, BarcodeFormat.QR_CODE, size, size, hints);
    } catch (WriterException ex) {
        mLogger.warn("qr encoder failed: " + ex.toString());
        return null;
    }

    final int width = result.getWidth();
    final int height = result.getHeight();
    final int[] pixels = new int[width * height];

    for (int y = 0; y < height; y++) {
        final int offset = y * width;
        for (int x = 0; x < width; x++) {
            pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
        }
    }

    final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);

    return bitmap;
}

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From source file:it.mb.whatshare.PairOutboundActivity.java

private Bitmap generateQRCode(String dataToEncode, int imageViewSize) throws WriterException {
    MultiFormatWriter writer = new MultiFormatWriter();
    BitMatrix matrix = writer.encode(dataToEncode, BarcodeFormat.QR_CODE, imageViewSize, imageViewSize);
    int width = matrix.getWidth();
    int height = matrix.getHeight();
    int[] pixels = new int[width * height];
    for (int y = 0; y < height; y++) {
        int offset = y * width;
        for (int x = 0; x < width; x++) {
            pixels[offset + x] = matrix.get(x, y) ? 0xff000000 : 0xffffffff;
        }/*from w w  w. j  av a2 s.co m*/
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

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From source file:com.cettco.buycar.activity.OrderDetailActivity.java

public Bitmap Create2DCode(String str) throws WriterException {
    // ?,??,?????,
    BitMatrix matrix = new MultiFormatWriter().encode(str, BarcodeFormat.QR_CODE, 500, 500);
    int width = matrix.getWidth();
    int height = matrix.getHeight();
    // ?,?/*  w w w.java  2s  . co  m*/
    int[] pixels = new int[width * height];
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            if (matrix.get(x, y)) {
                pixels[y * width + x] = 0xff000000;
            }

        }
    }

    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    // ??bitmap,?api
    bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return bitmap;
}

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