2019独角兽企业重金招聘Python工程师标准>>> 
swt 下的图片处理:
ImageData ideaImageData = new ImageData(path);
ideaImageData = getWhite(ideaImageData);
ideaImageData.transparentPixel = ideaImageData.palette.getPixel(new RGB(255, 255, 255));
Image fullImage = new Image(container.getDisplay(), ideaImageData);
Label label = new Label(container, SWT.NONE);
label.setImage(fullImage);
//-----------------------------------------------------------------
效果不错
public ImageData getWhite(ImageData imageData) {
int threshold = 220;
RGB white = new RGB(255, 255, 255);
for (int i = 0; i < imageData.width; i++) {
for (int j = 0; j < imageData.height; j++) {
RGB rgb = imageData.palette.getRGB(imageData.getPixel(i, j));
if (rgb.red > threshold && rgb.green > threshold && rgb.blue > threshold)
imageData.setPixel(i, j, imageData.palette.getPixel(white));
}
}
return imageData;
}
效果比较差
public ImageData toPureWhite(ImageData imageData) {
int redShift = imageData.palette.redShift;
int greenShift = imageData.palette.greenShift;
int blueShift = imageData.palette.blueShift;
int[] lineData = new int[imageData.width];
int r, g, b, pixelValue;
for (int y = 0; y < imageData.height; y++) {
// Analyze each pixel value in the line
imageData.getPixels(0, y, imageData.width, lineData, 0);
for (int x = 0; x < lineData.length; x++) {
pixelValue = lineData[x];
r = pixelValue & redShift;
g = (pixelValue & greenShift) >> 8;
b = (pixelValue & blueShift) >> 16;
System.out.println("r=" + r + " g=" + g + " b=" + b);
if (r >= 230 && g > 230 && b > 150)
imageData.setPixel(x, y, 0xFFFFFF);
}
}
return imageData;
}