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") …

我已经设置了 3 个 Google Cloud Storge 存储桶和 3 个函数（每个存储桶一个），它们将在 PDF 文件上传到存储桶时触发。函数将 PDF 转换为 png 图像并进行进一步处理。

当我尝试创建第四个存储桶和类似的功能时，奇怪的是它不起作用。即使我复制了现有的 3 个函数之一，它仍然无法正常工作，并且出现此错误：

Traceback (most recent call last): File "/env/local/lib/python3.7/site-packages/google/cloud/functions_v1beta2/worker.py", line 333, in run_background_function _function_handler.invoke_user_function(event_object) File "/env/local/lib/python3.7/site-packages/google/cloud/functions_v1beta2/worker.py", line 199, in invoke_user_function return call_user_function(request_or_event) File "/env/local/lib/python3.7/site-packages/google/cloud/functions_v1beta2/worker.py", line 196, in call_user_function event_context.Context(**request_or_event.context)) File "/user_code/main.py", line 27, in pdf_to_img with Image(filename=tmp_pdf, resolution=300) as image: File "/env/local/lib/python3.7/site-packages/wand/image.py", line 2874, in __init__ self.read(filename=filename, resolution=resolution) File "/env/local/lib/python3.7/site-packages/wand/image.py", line 2952, in read self.raise_exception() File "/env/local/lib/python3.7/site-packages/wand/resource.py", line 222, in raise_exception raise e wand.exceptions.PolicyError: …