减少java中JPG文件的文件大小
我们已经通过使用生成了一个JPG文件减少java中JPG文件的文件大小,java,selenium,screenshot,filesize,javax.imageio,Java,Selenium,Screenshot,Filesize,Javax.imageio,我们已经通过使用生成了一个JPG文件 org.openqa.selenium.TakesScreenshotclass File src = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE); File dest = new File("C:\\Users\\admin\\Desktop\\Images\\29_18-03-20-07-11-47.jpg"); FileHandler.copy(src, dest); 因为生
org.openqa.selenium.TakesScreenshot
class
File src = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
File dest = new File("C:\\Users\\admin\\Desktop\\Images\\29_18-03-20-07-11-47.jpg");
FileHandler.copy(src, dest);
因为生成的映像的文件大小为1.5MB到2.9MB。我们希望将文件大小减少到kbs
我们尝试了ImageIO,但生成的图像没有原始文件颜色空间/颜色配置文件
File input = new File("C:\\Users\\admin\\Desktop\\Images\\29_18-03-20-07-11-47.jpg");
File compressedImageFile = new File("C:\\Users\\admin\\Desktop\\Images\\compressed_image7.jpg");
BufferedImage image = ImageIO.read(input);
OutputStream os = new FileOutputStream(compressedImageFile);
Iterator<ImageWriter writers = ImageIO.getImageWritersByFormatName("jpg");
ImageWriter writer = (ImageWriter) writers.next();
ImageOutputStream ios = ImageIO.createImageOutputStream(os);
writer.setOutput(ios);
ImageWriteParam param = writer.getDefaultWriteParam();
param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
param.setCompressionQuality(0.05f);
writer.write(null, new IIOImage(image, null, null), param);
File input=新文件(“C:\\Users\\admin\\Desktop\\Images\\29_18-03-20-07-11-47.jpg”);
File compressedImageFile=新文件(“C:\\Users\\admin\\Desktop\\Images\\compressed\u image7.jpg”);
BuffereImage image=ImageIO.read(输入);
OutputStream os=新文件OutputStream(compressedImageFile);
迭代器尝试使用无损JPEG
ImageWriter writer= (ImageWriter) ImageIO.getImageWritersByFormatName("jpeg").next();
ImageWriteParam param= writer.getDefaultWriteParam();
param.setCompressionMode(param.MODE_EXPLICIT);
param.setCompressionType("JPEG-LS");
writer.setOutput(ImageIO.createImageOutputStream(new File(path)));
writer.write(null, new IIOImage(image, null, null), param);
这回答了你的问题吗?我也试过了,但没有任何帮助。图像的大小(以像素为单位)是多少?图像的大小是2048X1536JPEG默认是有损的。JPEG-LS是无损的!获取java.lang.IllegalArgumentException:未知压缩类型!也尝试了JPEG,但在image@JoachimSauer谢谢你的更新