Android平台上的图像编辑软件

package com.jacp.image.util; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.CompressFormat; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Matrix; import android.graphics.Rect; import android.util.Log; import com.jacp.image.R; public class ImageSpecific { private Context mContext; public static final int FLAG_OLD_REMEMBER = 0; public static final int FLAG_BLUR = FLAG_OLD_REMEMBER + 1; public static final int FLAG_SHARPEN = FLAG_OLD_REMEMBER + 2; public static final int FLAG_OVERLAY = FLAG_OLD_REMEMBER + 3; public static final int FLAG_FILM = FLAG_OLD_REMEMBER + 4; public static final int FLAG_EMBOSS = FLAG_OLD_REMEMBER + 5; public static final int FLAG_SUNSHINE = FLAG_OLD_REMEMBER + 6; public static final int FLAG_NEON = FLAG_OLD_REMEMBER + 7; public static final int FLAG_ALPHA_LAYER = FLAG_OLD_REMEMBER + 8; public ImageSpecific(Context context) { mContext = context; } /** * 图片特效处理 * @param bmp * @param flag * @return */ public Bitmap imageSpecific(Bitmap bmp, int flag) { Bitmap bm = null; switch (flag) { case FLAG_OLD_REMEMBER: // bm = oldRemeber(bmp); // bm = halo(bmp, 0, 0, 0); // bm = stria(bmp); // bm = chessbord(400); bm = cropBitmap(bmp); break; case FLAG_BLUR: // bm = blurImage(bmp, 3); bm = blurImageAmeliorate(bmp); break; case FLAG_SHARPEN: // bm = sharpenImage(bmp, 3); bm = sharpenImageAmeliorate(bmp); break; case FLAG_OVERLAY: // bm = overlay(bmp); bm = overlayAmeliorate(bmp); break; case FLAG_FILM: // bm = film(bmp); bm = filmAmeliorate(bmp); break; case FLAG_EMBOSS: // bm = emboss(bmp); bm = embossAmeliorate(bmp); break; case FLAG_SUNSHINE: // bm = sunshine(bmp); bm = sunshineAmeliorate(bmp); break; case FLAG_NEON: bm = neon(bmp); break; case FLAG_ALPHA_LAYER: bm = alphaLayer(bmp); break; } return bm; } /** * 怀旧效果(相对之前做了优化快一倍) * @param bmp * @return */ private Bitmap oldRemeber(Bitmap bmp) { // 速度测试 long start = System.currentTimeMillis(); int width = bmp.getWidth(); int height = bmp.getHeight(); Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565); int pixColor = 0; int pixR = 0; int pixG = 0; int pixB = 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); for (int i = 0; i < height; i++) { for (int k = 0; k < width; k++) { pixColor = pixels[width * i + k]; pixR = Color.red(pixColor); pixG = Color.green(pixColor); pixB = Color.blue(pixColor); newR = (int) (0.393 * pixR + 0.769 * pixG + 0.189 * pixB); newG = (int) (0.349 * pixR + 0.686 * pixG + 0.168 * pixB); newB = (int) (0.272 * pixR + 0.534 * pixG + 0.131 * pixB); int newColor = Color.argb(255, newR > 255 ? 255 : newR, newG > 255 ? 255 : newG, newB > 255 ? 255 : newB); pixels[width * i + k] = newColor; } } bitmap.setPixels(pixels, 0, width, 0, 0, width, height); long end = System.currentTimeMillis(); Log.d("may", "used time="+(end - start)); return bitmap; } /** * 模糊效果 * @param bmp * @return */ private Bitmap blurImage(Bitmap bmp) { int width = bmp.getWidth(); int height = bmp.getHeight(); Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565); int pixColor = 0; int newR = 0; int newG = 0; int newB = 0; int newColor = 0; int[][] colors = new int[9][3]; for (int i = 1, length = width - 1; i < length; i++) { for (int k = 1, len = height - 1; k < len; k++) { for (int m = 0; m < 9; m++) { int s = 0; int p = 0; switch(m) { case 0: s = i - 1; p = k - 1; break; case 1: s = i; p = k - 1; break; case 2: s = i + 1; p = k - 1; break; case 3: s = i + 1; p = k; break; case 4: s = i + 1; p = k + 1; break; case 5: s = i; p = k + 1; break; case 6: s = i - 1; p = k + 1; break; case 7: s = i - 1; p = k; break; case 8: s = i; p = k; } pixColor = bmp.getPixel(s, p); colors[m][0] = Color.red(pixColor); colors[m][1] = Color.green(pixColor); colors[m][2] = Color.blue(pixColor); } for (int m = 0; m < 9; m++) { newR += colors[m][0]; newG += colors[m][1]; newB += colors[m][2]; } newR = (int) (newR / 9F); newG = (int) (newG / 9F); newB = (int) (newB / 9F); newR = Math.min(255, Math.max(0, newR)); newG = Math.min(255, Math.max(0, newG)); newB = Math.min(255, Math.max(0, newB)); newColor = Color.argb(255, newR, newG, newB); bitmap.setPixel(i, k, newColor); newR = 0; newG = 0; newB = 0; } } return bitmap; } /** * 柔化效果(高斯模糊)(优化后比上面快三倍) * @param bmp * @return */ private Bitmap blurImageAmeliorate(Bitmap bmp) { long start = System.currentTimeMillis(); // 高斯矩阵 int[] gauss = new int[] { 1, 2, 1, 2, 4, 2, 1, 2, 1 }; 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 delta = 16; // 值越小图片会越亮，越大则越暗 int idx = 0; int[] pixels = new int[width * height]; bmp.getPixels(pixels, 0, width, 0, 0, width, height); for (int i = 1, length = height - 1; i < length; i++) { for (int k = 1, len = width - 1; k < len; k++) { idx = 0; for (int m = -1; m <= 1; m++) { for (int n = -1; n <= 1; n++) { pixColor = pixels[(i + m) * width + k + n]; pixR = Color.red(pixColor); pixG = Color.green(pixColor); pixB = Color.blue(pixColor); newR = newR + (int) (pixR * gauss[idx]); newG = newG + (int) (pixG * gauss[idx]); newB = newB + (int) (pixB * gauss[idx]); idx++; } } newR /= delta; newG /= delta; newB /= delta; 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[i * width + k] = Color.argb(255, newR, newG, newB); newR = 0; newG = 0; newB = 0; } } bitmap.setPixels(pixels, 0, width, 0, 0, width, height); long end = System.currentTimeMillis(); Log.d("may", "used time="+(end - start)); return bitmap; } /** * 锐化效果 * @param bmp * @return */ private Bitmap sharpenImage(Bitmap bmp, float sharpen) { 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; float alpha = 0.9F; int newColor = 0; int[][] colors = new int[8][3]; for (int i = 1, length = width - 1; i < length; i++) { for (int k = 1, len = height - 1; k < len; k++) { for (int m = 0; m < 8; m++) { int s = 0; int p = 0; switch(m) { case 0: s = i - 1; p = k -