Java将CMYK图像保存到文件
我正在尝试在CMYK Colorspace中创建图像，并在使用它之后，例如绘画线等，将其保存到文件中。不幸的是，互联网上没有关于java中CMYK的大量信息。我发现只有一篇文章http://carback.us/rick/blog/?p=58。但是使用iText库将图像保存到Pdf。但我需要它保存到png或jpeg文件。这是代码：
public BufferedImage createCMYKBufferedImage(double l_width, double l_height) {
ColorSpace colorSpace = SimpleCMYKColorSpace.getInstance();
ComponentColorModel l_ccm = new ComponentColorModel(colorSpace, false, false,
1, DataBuffer.TYPE_FLOAT);
int[] l_bandoff = {0, 1, 2, 3}; //Index for each color (C, is index 0, etc)
PixelInterleavedSampleModel l_sm = new PixelInterleavedSampleModel(
DataBuffer.TYPE_FLOAT,
(int)l_width, (int)l_height,
4,(int)l_width*4, l_bandoff);
WritableRaster l_raster = WritableRaster.createWritableRaster(l_sm,
new Point(0, 0));
return new BufferedImage(l_ccm, l_raster, false, null);
}
没有找到相关结果
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古擅坛犯
import com.sun.image.codec.jpeg.ImageFormatException; import com.sun.image.codec.jpeg.JPEGCodec; import com.sun.image.codec.jpeg.JPEGEncodeParam; import com.sun.image.codec.jpeg.JPEGImageDecoder; import com.sun.image.codec.jpeg.JPEGImageEncoder; public static byte[] jpegToBytes(BufferedImage image) { ByteArrayOutputStream os = new ByteArrayOutputStream(); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os); JPEGEncodeParam jparm = encoder.getDefaultJPEGEncodeParam(image); jparm.setQuality(1F, false); try { encoder.encode(image, jparm); os.close(); } catch (IOException e) { EclipseLogging.logError(RabidPhotoPlugin.getDefault(), RabidPhotoPlugin.PLUGIN_ID, e); return new byte[0]; } return os.toByteArray(); }public static void writePhoto(byte[] photo) { try { OutputStream os = new FileOutputStream('file name'); os.write(photo); os.flush(); os.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }糖固傻染