Question

具体在这里我试图在java上运行下一行：

 convert /home/mohamed.hegab/Desktop/1263392123111.jpg -gamma .45455 -resize 400x400 -gamma 2.2 -quality 92 /home/mohamed.hegab/Desktop/small.jpg

在bash命令行上运行得很好但是当我在使用流程构建器的java上运行它时，它会给我带来奇怪的结果。

public static void resizeImage(String srcPath, String destPath,String size) {

        ProcessBuilder pb = new ProcessBuilder("convert", srcPath , " -gamma", ".45455",
                " -resize",size, " -gamma ", "2.2", " -quality",
                "92" , destPath);
        pb.redirectErrorStream(true);
        InputStreamReader isr = null;
        BufferedReader br = null;
        try {
            Process p = pb.start();
            p.waitFor();
            isr = new InputStreamReader(p.getInputStream());
            br = new BufferedReader(isr);
            String line = null;
            while ((line = br.readLine()) != null) {
                System.out.println(line);
            }
        } catch (Exception e) {
            LOG.error("Exception while trying to convert text to image", e);
        } finally {
            try {
                if(isr != null) {
                    isr.close();
                }
                if(br != null) {
                    br.close();
                }
            } catch (IOException e) {
                LOG.error("Could not close stream", e);
            }
        }
    }

system.out中出现的行很奇怪而且很奇怪

convert：无法打开图片-gamma': No such file or directory @ blob.c/OpenBlob/2439. convert: unable to open image。45455'：没有这样的文件或目录@ blob.c / OpenBlob / 2439。转换：无法打开图像-resize': No such file or directory @ blob.c/OpenBlob/2439. convert: unable to open image 400x400'：没有这样的文件或目录@ blob.c / OpenBlob / 2439。转换：无法打开图像-gamma ': No such file or directory @ blob.c/OpenBlob/2439. convert: unable to open image 2.2'：没有这样的文件或目录@ blob.c / OpenBlob / 2439。转换：无法打开图像-quality': No such file or directory @ blob.c/OpenBlob/2439. convert: unable to open image 92'：没有这样的文件或目录@ blob.c / OpenBlob / 2439。

但图片仅以960 * 960的大小出现，我不知道它来自哪里。

所以任何人都可以帮助我:)

Answer 1

在-之前避免空白，shell命令只能识别以-开头的选项。

Answer 2

答案就在这个链接

http://www.darcynorman.net/2005/03/15/jai-vs-imagemagick-image-resizing/

简单地说，我应该将命令切换为数组中的碎片并在没有流程构建器的情况下正常运行

java的图像magick问题

2 个答案: