我正在开发小型 android 应用程序，我想对图像进行效果，即素描、单色、棕褐色、木炭、油漆、否定、翻转、翻转、浮雕等对图像的影响，并改变色调、饱和度、亮度、对比度，图像的清晰度。是否有任何用于此类工具的 Android 库。我真的很感激任何帮助。
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4 回答
4
试试这个库
于 2012-02-17T08:08:18.643 回答
1
使用下面的代码为位图添加对比度：值的范围可以从 1 到 100
public static Bitmap AdjustContrast(Bitmap original, float Value){
Value = (100.0f + Value) / 100.0f;
Value *= Value;
Bitmap newBitmap = Bitmap.createBitmap(original.getWidth(), original.getHeight(),original.getConfig());
int[] argb = new int[original.getWidth() * original.getHeight()];
original.getPixels(argb, 0, original.getWidth(), 0, 0, original.getWidth(), original.getHeight());
for (int i = argb.length - 1; i >= 0; --i) {
int alpha = argb[i] >> 24;
int red = (argb[i] >> 16) & 0xFF;
int green = (argb[i] >> 8) & 0xFF;
int blue = argb[i] & 0xFF;
float Red = red / 255.0f;
float Green = green / 255.0f;
float Blue = blue / 255.0f;
Red = (((Red - 0.5f) * Value) + 0.5f) * 255.0f;
Green = (((Green - 0.5f) * Value) + 0.5f) * 255.0f;
Blue = (((Blue - 0.5f) * Value) + 0.5f) * 255.0f;
int iR = (int)Red;
iR = iR > 255 ? 255 : iR;
iR = iR < 0 ? 0 : iR;
int iG = (int)Green;
iG = iG > 255 ? 255 : iG;
iG = iG < 0 ? 0 : iG;
int iB = (int)Blue;
iB = iB > 255 ? 255 : iB;
iB = iB < 0 ? 0 : iB;
int composite = (alpha << 24) | (iR << 16) | (iG << 8) | iB;
argb[i] = composite;
}
newBitmap.setPixels(argb, 0, original.getWidth(), 0, 0, original.getWidth(), original.getHeight());
Store.lastBitmap = newBitmap;
return newBitmap;
}
将此用于亮度效果：值应在 1 到 100 之间
public static Bitmap makeBrightnessBitmap(Bitmap original, int brightness){
Bitmap newBitmap = Bitmap.createBitmap(original.getWidth(), original.getHeight(),original.getConfig());
int[] argb = new int[original.getWidth() * original.getHeight()];
original.getPixels(argb, 0, original.getWidth(), 0, 0, original.getWidth(), original.getHeight());
for (int i = argb.length - 1; i >= 0; --i) {
int alpha = argb[i] >> 24;
int red = (argb[i] >> 16) & 0xFF;
int green = (argb[i] >> 8) & 0xFF;
int blue = argb[i] & 0xFF;
int red2 = red + brightness;
if (red2>0xFF) red2 = 0xFF;
if (red2<0) red2 = 0;
int green2 = green + brightness;
if (green2>0xFF) green2 = 0xFF;
if (green2<0) green2 = 0;
int blue2 = blue + brightness;
if (blue2>0xFF) blue2 = 0xFF;
if (blue2<0) blue2 = 0;
int composite = (alpha << 24) | (red2 << 16) | (green2 << 8) | blue2;
argb[i] = composite;
}
newBitmap.setPixels(argb, 0, original.getWidth(), 0, 0, original.getWidth(), original.getHeight());
Store.lastBitmap = newBitmap;
return newBitmap;
}
于 2012-07-27T11:18:21.577 回答
0
基本的图像效果可以通过标准的android工具来实现。查看 android.graphics 包（它们适用于原生图像格式和位图）
于 2012-02-17T08:24:43.707 回答
0
使用 Aviary SDK。支持IOS安卓和Windows手机官方链接：http ://www.aviary.com/android
您可以在此链接中找到完整代码：https ://github.com/AviaryInc/Mobile-Feather-SDK-for-Android
祝您的申请好运
于 2012-12-06T05:12:14.133 回答