相关疑难解决方法(0)

我想通过convertImageMagick 创建一个验证码pic .

我遵循这个,但有一些问题.

输入在我的linux shell中:

convert -background white -fill black -font FreeSerif-Bold -pointsize 36 label:'adfgh' ./test.png

错误是:

转换:未授权adfgh@ error/construct.c/ReadImage/453.转换:缺少图像文件名./test.png@ error/convert.c/ConvertImageCommand/3015

我的ImageMagick:版本:6.7.2-7,我安装它yum install ImageMagick.

我很无能为力.有什么建议吗？

我有一个程序,我需要使用Image Magick将PDF转换为图像.我这样做是使用subprocess包:

        cmd = 'magick convert -density 300 '+pdfFile+'['+str(rangeTuple[0])+'-'+str(rangeTuple[1])+'] -depth 8 '+'temp.tiff' #WINDOWS
        if(os.path.isfile('temp.tiff')):
            os.remove('temp.tiff')
        subprocess.call(cmd,shell=True)
        im = Image.open('temp.tiff')

我得到的错误是:

convert-im6.q16: not authorized `temp2.pdf' @ error/constitute.c/ReadImage/412.
convert-im6.q16: no images defined `temp.tiff' @ error/convert.c/ConvertImageCommand/3258.
Traceback (most recent call last):
  File "UKExtraction2.py", line 855, in <module>
    doItAllUpper("A0","UK5.csv","temp",59,70,"box",2,1000,firstPageCoordsUK,boxCoordUK,voterBoxCoordUK,internalBoxNumberCoordUK,externalBoxNumberCoordUK,addListInfoUK)
  File "UKExtraction2.py", line 776, in doItAllUpper
    doItAll(tempPDFName,outputCSV,2,pdfs,formatType,n_blocks,writeBlockSize,firstPageCoords,boxCoord,voterBoxCoord,internalBoxNumberCoord,externalBoxNumberCoord,addListInfo,pdfName)
  File "UKExtraction2.py", line 617, in doItAll
    mainProcess(pdfName,(0,noOfPages-1),formatType,n_blocks,outputCSV,writeBlockSize,firstPageCoords,boxCoord,voterBoxCoord,internalBoxNumberCoord,externalBoxNumberCoord,addListInfo,bigPDFName,basePages)
  File "UKExtraction2.py", line 542, in mainProcess
    im = Image.open('temp.tiff')
  File "/home/rohit/.local/lib/python3.6/site-packages/PIL/Image.py", line 2609, in open
    fp = builtins.open(filename, "rb") …

如果我在工具中上传图像并单击下一步，则会出现以下错误：

ImagickException: not authorized `/tmp/comcard_NEgyzR.pdf' @ error/constitute.c/ReadImage/412
/vendor/spatie/pdf-to-image/src/Pdf.php in line 169

任何想法。这种事时时刻刻都在发生。