Android 图像处理（浮雕、复古、怀旧等）

来源：互联网发布：制作搞笑视频的软件编辑：程序博客网时间：2024/04/28 12:38
import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.ColorMatrix;import android.graphics.ColorMatrixColorFilter;import android.graphics.Paint;public class ImageHelper {    /**     * 色调、色相、亮度     * @param bm     * @param hue     * @param saturation     * @param lum     * @return     */    public static Bitmap handleImageEffect(Bitmap bm, float hue, float saturation, float lum) {        Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);        Canvas canvas = new Canvas(bmp);        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);        ColorMatrix hueMatrix = new ColorMatrix();        hueMatrix.setRotate(0, hue);        hueMatrix.setRotate(1, hue);        hueMatrix.setRotate(2, hue);        ColorMatrix saturationMatrix = new ColorMatrix();        saturationMatrix.setSaturation(saturation);        ColorMatrix lumMatrix = new ColorMatrix();        lumMatrix.setScale(lum, lum, lum, 1);        ColorMatrix imageMatrix = new ColorMatrix();        imageMatrix.postConcat(hueMatrix);        imageMatrix.postConcat(saturationMatrix);        imageMatrix.postConcat(lumMatrix);        paint.setColorFilter(new ColorMatrixColorFilter(imageMatrix));        canvas.drawBitmap(bm, 0, 0, paint);        return bmp;    }    /**     * 底片     * @param bm     * @return     */    public static Bitmap handleImageNegative(Bitmap bm) {        int width = bm.getWidth();        int height = bm.getHeight();        int color;        int r, g, b, a;        Bitmap bmp = 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 = 0; i < width * height; i++) {            color = oldPx[i];            r = Color.red(color);            g = Color.green(color);            b = Color.blue(color);            a = Color.alpha(color);            r = 255 - r;            g = 255 - g;            b = 255 - b;            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);        }        bmp.setPixels(newPx, 0, width, 0, 0, width, height);        return bmp;    }    /**     * 怀旧     * @param bm     * @return     */    public static Bitmap handleImagePixelsOldPhoto(Bitmap bm) {        Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(),                Bitmap.Config.ARGB_8888);        int width = bm.getWidth();        int height = bm.getHeight();        int color = 0;        int r, g, b, a, r1, g1, b1;        int[] oldPx = new int[width * height];        int[] newPx = new int[width * height];        bm.getPixels(oldPx, 0, bm.getWidth(), 0, 0, width, height);        for (int i = 0; i < width * height; i++) {            color = oldPx[i];            a = Color.alpha(color);            r = Color.red(color);            g = Color.green(color);            b = Color.blue(color);            r1 = (int) (0.393 * r + 0.769 * g + 0.189 * b);            g1 = (int) (0.349 * r + 0.686 * g + 0.168 * b);            b1 = (int) (0.272 * r + 0.534 * g + 0.131 * b);            if (r1 > 255) {                r1 = 255;            }            if (g1 > 255) {                g1 = 255;            }            if (b1 > 255) {                b1 = 255;            }            newPx[i] = Color.argb(a, r1, g1, b1);        }        bmp.setPixels(newPx, 0, width, 0, 0, width, height);        return bmp;    }    /**     * 浮雕     * @param bm     * @return     */    public static Bitmap handleImagePixelsRelief(Bitmap bm) {        Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(),                Bitmap.Config.ARGB_8888);        int width = bm.getWidth();        int height = bm.getHeight();        int color = 0, colorBefore = 0;        int a, r, g, b;        int r1, g1, b1;        int[] oldPx = new int[width * height];        int[] newPx = new int[width * height];        bm.getPixels(oldPx, 0, bm.getWidth(), 0, 0, width, height);        for (int i = 1; i < width * height; i++) {            colorBefore = oldPx[i - 1];            a = Color.alpha(colorBefore);            r = Color.red(colorBefore);            g = Color.green(colorBefore);            b = Color.blue(colorBefore);            color = oldPx[i];            r1 = Color.red(color);            g1 = Color.green(color);            b1 = Color.blue(color);            r = (r - r1 + 127);            g = (g - g1 + 127);            b = (b - b1 + 127);            if (r > 255) {                r = 255;            }            if (g > 255) {                g = 255;            }            if (b > 255) {                b = 255;            }            newPx[i] = Color.argb(a, r, g, b);        }        bmp.setPixels(newPx, 0, width, 0, 0, width, height);        return bmp;    }}
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