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我試圖設計一個報告模板,其中有許多(數百個)圖像被超鏈接引用。我想該文件是25MB下(電子郵件等原因),所以我試圖壓縮使用下面的代碼的圖像:apache POI XWPF文件中的圖像顏色失真
//I get the input stream
InputStream ins = entity.images.getInputStream(img);
BufferedImage bufImg = ImageIO.read(ins);
//I compress the image
ByteArrayOutputStream compressed = new ByteArrayOutputStream();
ImageOutputStream outputStream = ImageIO.createImageOutputStream(compressed);
ImageWriter jpgWriter = ImageIO.getImageWritersByFormatName("jpg").next();
ImageWriteParam jpgWriteParam = jpgWriter.getDefaultWriteParam();
jpgWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
jpgWriteParam.setCompressionQuality(0.98f);
jpgWriter.setOutput(outputStream);
jpgWriter.write(null, new IIOImage(bufImg, null, null), jpgWriteParam);
jpgWriter.dispose();
byte[] jpegData = compressed.toByteArray();
//I attempt to add the compressed image
imgRun.addPicture(new ByteArrayInputStream(jpegData), Document.PICTURE_TYPE_JPEG,"text", Units.toEMU(newWidth), Units.toEMU(newHeight));
的圖像寫入文件,但它們的顏色失真。在我的情況下,他們都是紅/橙色。任何想法是什麼造成這/做什麼?
我沒有答案,但它看起來像你使用JPG的文件,然後將其添加爲PNG。代碼是否正確? – stdunbar
我修復了帖子,應該說是PICTURE_TYPE_JPEG。但問題依然存在。有任何想法嗎? –
將圖像放入文檔之前圖像是否正確? – stdunbar