网站脑图怎么做/天津百度关键词排名

ImageMagick

官网 https://imagemagick.org/， 支持多种格式。命令行工具很适合调试。功能很强大. 还有一款工具GraphicsMagick 是从ImageMagick的基础上研发出来的。

OpenCV

官网 https://opencv.org/ ， github地址https://github.com/opencv/opencv，非常活跃的一个开源工具，原来免费的教程，现在已经开始包装成视频，进行收费了，我买了教程，看了下，和以前官网看过的文字版教程没多大差别。github关注已经达到了72.3k。

ImageJ

官网 https://imagej.net/ij/

ImageJ is open source software for processing and analyzing scientific images.

基于ImageJ已经又研发了ImageJ2（目前github关注量1k）和Fiji的产品。

// Open the TIFF image
ImagePlus imagePlus = new ImagePlus(f);// Get the image processor
ImageProcessor imageProcessor = imagePlus.getProcessor();// Add text to the image
int x = 0; // X-coordinate of text
int y = 0; // Y-coordinate of textString   textToAdd = "These three lines of\ntext will be overlayed on\nthe current image";Font font = new Font("SansSerif", Font.PLAIN, 56);
imageProcessor.setFont(font);
imageProcessor.setColor(Color.RED);
imageProcessor.drawString(textToAdd, x, y); // Draw the text// Display the modified image (optional)
//        imagePlus.show();// Save the modified image
ImagePlus outputImage = new ImagePlus("Modified Image", imageProcessor);
IJ.saveAs(outputImage,"jpeg", f31);
IJ.saveAsTiff(outputImage, f41);
final ImagePlus imagePlus1 = IJ.openImage(f41);
IJ.save(imagePlus1, fpng);

commons-imaging

Apache维护的产品，目前github关注量381

final File file = new File(f);
final BufferedImage overlay = Imaging.getBufferedImage(file);
// Add text to the image
int x = 0; // X-coordinate of text
int y = 0; // Y-coordinate of textFont font = new Font("SansSerif", Font.PLAIN, 56);
String   textToAdd = "These three lines of\ntext will be overlayed on\nthe current image";
addTextToImage(overlay, textToAdd, x, y, Color.RED, font);ImageIO.write(overlay, "JPEG", new File(fa1));
//        ImageIO.write(overlay, "TIFF", new File(fa2));
saveImageWithText(overlay, fa2);
Imaging.writeImage(overlay, Files.newOutputStream(Paths.get(fa4png)), ImageFormats.PNG);

// Method to add text to the imageprivate static void addTextToImage(BufferedImage image, String text, int x, int y, Color color, Font font) {Graphics2D g2d = image.createGraphics();g2d.setColor(color);g2d.setFont(font);
//        g2d.drawString(text, x, y);drawString(g2d, text, x, y);g2d.dispose();}private static void drawString(Graphics g, String text, int x, int y) {for (String line : text.split("\n"))g.drawString(line, x, y += g.getFontMetrics().getHeight());}//    // Method to save the modified image with text using Common Imagingprivate static void saveImageWithText(BufferedImage image, String outputPath) throws IOException, ImageWriteException {// Create a new instance of ImageWriteParam for TIFF formatfinal TiffImagingParameters params = new TiffImagingParameters();params.setCompression(TiffConstants.TIFF_COMPRESSION_UNCOMPRESSED);// Write the BufferedImage with text to a TIFF file
//        Imaging.writeImage(image, new File(outputPath), ImageFormat.IMAGE_FORMAT_TIFF, params);new TiffImageParser().writeImage(image, Files.newOutputStream(Paths.get(outputPath)), params);}

TwelveMonkeys

目前github关注量1.7k

JDeli 是一个付费软件

如下是测试结果

photoshop可以看到通道增加了专色通道。

	ImageMagick	opencv	imagej	commons-imaging	TwelveMonkeys	JDeli(付费软件)
带有2个专色通道的tiff图片	不支持	不支持	支持	支持	不支持	支持
将文字写入到图片中	/	/	支持	支持
文字写入保存为jpg格式	/	/	写入红色的字体变成了黑红	写入红色的字体变成了黑红
文字写入保存为tiff格式	/	/	写入红色的字体正常	写入红色的字体正常	写入红色的字体正常
支持Tiff格式alpha通道	/	/	不支持	不支持	不支持	不支持