I've been looking all night to find a solution or at least understant where the problem is comming from so here i am.
I'm runnning a Flask server linked to my Apache with wsgi.
I am recovering a picture from a user webcam as base 64 string (recovered from URI) and writing it on a temporary file.
I am doing the same for a profile picture (like Facebook) of the user on another temporary file.
# Decode base64 to image data
imgdataCam = stringBase64Cam.decode('base64')
imgdataPro = stringBase64Pro.decode('base64')
# Create temporary files
tempFile1 = tempfile.NamedTemporaryFile()
tempFile2 = tempfile.NamedTemporaryFile()
# Write images data in files
tmpImg1=open(tempFile1.name,'wb')
tmpImg1.write(imgdataCam)
tmpImg1.close()
tmpImg2=open(tempFile2.name,'wb')
tmpImg2.write(imgdataPro)
tmpImg2.close()
Later, i'm trying to read those files (temporary files still not closed so they still exist) as
img1 = cv2.imread(tempFile1.name)
But it looks like nothing appens, i made some prints everywhere and it looks like "cv2.imread()" is stoping my program without any error message.
I also tried to read those images with PIL like that:
pilImg1 = Image.open(tempFile1.name).convert('RGB')
ocvImg1 = np.array(pilImg1)
img1 = ocvImg1[:, :, ::-1].copy()
With PIL i'm able to read the file but i get the same problem as imread with
greyImg = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY)
Later on my program.
Everything is running very well on my laptop but once i uploaded it on my raspberry pi, i get thoses problems.
Could someone help me understanding where it is coming from please ?
It is also working well when i'm running my flask serveur with "python __init__.py" on this raspberry.
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