Hi Christopher!
Thanks for the response. Below is my code
pygame.image.save(get_screen, image_filename) # save the file
as jpeg
## reopen image and convert to text file
with open(image_filename, "rb") as imageFile:
imagestr = base64.b64encode(imageFile.read())
## create the text file name to save to disk
text_filename = newpath + "s" + str(va.page) + ".dat"
## save imagestr(image as a textfle) to disk
with open(text_filename, "wb") as f:
f.write(imagestr)
myscreen = pygame.image.load(image_filename).convert()
I capture the screen image
Is there any way that it can be converted directly to a text file like
above without writing it to disk first?
When you capture a screen it is a pygame surface. It is NOT a jpeg or a
png. The only way to cojnvert it to a jpeg or png is to write it to disk
and then reload it and then convert it to a text fle using base64.
What I would like to do is to capture the screen, covert to jpeg and then
convert to text file WITHOUT writing to disk first.
Any ideas?
Thanks for your support.
On Fri, Aug 8, 2014 at 7:54 PM, Christopher Night <cosmologi...@gmail.com>
wrote:
> It depends on what precisely you mean when you say that a python variable
> is a jpeg image. Do you mean that it's a string containing the contents of
> a jpeg image file? So if you wrote it to disk you'd get a jpeg image file?
>
> If that's what you mean, you can do it with PIL and StringIO. (There might
> be an easier way.)
>
> import pygame
> from PIL import Image
> from cStringIO import StringIO
>
> # create an example pygame image
> img = pygame.Surface((100, 100))
> pygame.draw.circle(img, (255, 0, 0), (50, 50), 40)
> # convert to PIL format
> imgstr = pygame.image.tostring(img, "RGB", False)
> pimg = Image.fromstring("RGB", img.get_size(), imgstr)
> # save to string
> s = StringIO()
> pimg.save(s, "JPEG")
> r = s.getvalue()
> s.close()
>
> # r is a string with the contents of a jpeg file. to confirm:
> open("img.jpg", "wb").write(r)
>
> However, this doesn't seem like a very useful thing to have (and if I
> needed it so badly I would just write it to disk and read it back) so I may
> be misunderstanding you.
>
>
> On Fri, Aug 8, 2014 at 5:16 AM, diliup gabadamudalige <dili...@gmail.com>
> wrote:
>
>> Hi all!
>>
>> Is there a way to convert a pygame surface to a png or jpeg IN MEMORY
>> instead of saving to disk and loading again?
>> something like
>> get_screen = SCREEN.subsurface(0, 0, SCREENW, SCREENH) # grab the screen
>>
>> my_image = get_screen.convert(jpeg) # now convert the image to jpeg
>>
>> and now my_image is a jpeg image of get_screen
>>
>> I searched the net but couldn't find any other way other than save to
>> disk as jpeg and reload.
>>
>> Any positive OR negative help is very much appreciated.
>>
>> Thanks in advance
>> Diliup Gabadamudalige
>>
>> http://www.diliupg.com
>> http://soft.diliupg.com/
>>
>>
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--
Diliup Gabadamudalige
http://www.diliupg.com
http://soft.diliupg.com/
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