加载Base64编码的字符串为Python图像库 [英] Loading Base64 String into Python Image Library
问题描述
我通过Ajax来的Django发送图像为base64字符串。在我的Django认为我需要调整图像大小,并将其保存在文件系统中。
下面是一个Base64字符串(简体):
数据:图像/ JPEG; BASE64,/ 9J / 4AAQSkZJRg-IT-保持持续换几个,多线=
我试着使用PIL打开此下面的蟒蛇code:
IMG = cStringIO.StringIO(request.POST ['文件'。德code('的base64'))
图像= Image.open(IMG)
返回的Htt presponse(图像,CONTENT_TYPE =图像/ JPEG')
我想显示上传的图片回来,但Firefox抱怨'无法显示图像,因为它包含错误
我无法弄清楚我的错误。
解决方案:
PIC = cStringIO.StringIO()image_string = cStringIO.StringIO(base64.b64de code(request.POST ['文件']))图像= Image.open(image_string)image.save(PIC,image.format,质量= 100)pic.seek(0)返回的Htt presponse(PIC,CONTENT_TYPE =图像/ JPEG')
解决方案:
打开PIL图像保存为一个类文件对象解决了这个问题。
PIC = cStringIO.StringIO()
image_string = cStringIO.StringIO(base64.b64de code(request.POST ['文件']))
图像= Image.open(image_string)
image.save(PIC,image.format,质量= 100)
pic.seek(0)
返回的Htt presponse(PIC,CONTENT_TYPE =图像/ JPEG')
I'm sending images as base64 string through ajax to django. In my django view I need to resize the image and save it in the file system.
Here is a base64 string(simplified):
data:image/jpeg;base64,/9j/4AAQSkZJRg-it-keeps-going-for-few-more-lines=
I tried to open this in PIL using the below python code:
img = cStringIO.StringIO(request.POST['file'].decode('base64'))
image = Image.open(img)
return HttpResponse(image, content_type='image/jpeg')
I'm trying to display the uploaded image back, but firefox complains that 'The image cannot be displayed because it contains error'
I couldn't figure out my mistake.
SOLUTION:
pic = cStringIO.StringIO()
image_string = cStringIO.StringIO(base64.b64decode(request.POST['file']))
image = Image.open(image_string)
image.save(pic, image.format, quality = 100)
pic.seek(0)
return HttpResponse(pic, content_type='image/jpeg')
SOLUTION:
Saving the opened PIL image to a file-like object solves the issue.
pic = cStringIO.StringIO()
image_string = cStringIO.StringIO(base64.b64decode(request.POST['file']))
image = Image.open(image_string)
image.save(pic, image.format, quality = 100)
pic.seek(0)
return HttpResponse(pic, content_type='image/jpeg')
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