Question

I want to resize the input image to a fixed size. Then I want to entire content of the resized image file in a buffer for further use like, appending it with other buffer(data).

Currently I am doing it using the following python function,

def get_resize_img(img_file):
    img = Image.open(img_file)
    img = img.resize((640,960), Image.NEAREST)
    img.save("tmp_out.jpg")
    fp = open("tmp_out.jpg", "rb")
    data = fp.read()
    fp.close()
    print "img sz:", len(data)
    return data

Is there any better way to achieve this without writing into a dummy file (tmp_out.jpg) and reading back from it.

-Mohan

Answer 1

Import StringIO

def get_resize_img(img_file):
    buffer = StringIO.StringIO()
    img = Image.open(img_file)
    img = img.resize((640,960), Image.NEAREST)
    format = "YOUR_FORMAT" // JPG,PNG,etc.
    img.save(buffer,format)
    return buffer.getvalue()