ImageMagick 的转换输出乱码图片

如何解决ImageMagick 的转换输出乱码图片

我有下面的代码。出于某种原因，它输出这个乱码的图像：

原文：

（本练习中不允许使用任何现成的 Python 库）

@app.route("/flip",methods=["POST"])
def flip():

    # retrieve parameters from html form
    if 'horizontal' in request.form['mode']:
        direction = 90
    elif 'vertical' in request.form['mode']:
        direction = -90

    filename = request.form['image']

    # open and process image
    target = os.path.join(APP_ROOT,'static/images')
    destination = "/".join([target,filename])

    img = Image.open(destination)
    subprocess.call(['C:\Program Files\ImageMagick-7.0.10-Q16-HDRI\magick.exe','convert',f'{destination}','-rotate',f'{direction}',f'{destination}'],shell=True)
    # save and return image
    destination = "/".join([target,'flipped.jpg'])
    if os.path.isfile(destination):
        os.remove(destination)
    img.save(destination)
    return send_image('flipped.jpg')

编辑：当我将 subprocess.call 中的目标图像设置为 flipped.jpg 时 - 输出是原始图像。为什么？

解决方法

已解决：

    if 'horizontal' in request.form['mode']:
        direction = 'flip'
    elif 'vertical' in request.form['mode']:
        direction = 'flop'
        filename = request.form['image']

    # open and process image
    target = os.path.join(APP_ROOT,'static/images')
    destination = "/".join([target,filename])
    subprocess.call(['C:\Program Files\ImageMagick-7.0.10-Q16-HDRI\magick.exe','convert',f'{destination}','-'f'{direction}',f'{destination}'],shell=True)
    return send_image(filename)