This is the complete and correct code. Can anyone say what;s wrong? Thanks
in advance.
import pygame
import StringIO
putimage = pygame.image.load("88keykbd.png")
buff = StringIO.StringIO()
buff.name = '88keykbd.png'
pygame.image.save(putimage, buff)
putimage = buff.getvalue()
print "buff:", type(buff), "myimage:", type(putimage), "getimage:",
type(putimage)
print len(putimage)
with open('myscrambledimage.dat', 'w') as newfile:
newfile.write(putimage)
with open('myscrambledimage.dat', 'r') as newfile:
getimage= newfile.read()
print len(getimage)
On Wed, Aug 13, 2014 at 7:46 PM, Noel Garwick <noel.garw...@gmail.com>
wrote:
> since myimage is using pygame.image.load, it might be indexed? On the
> other hand, it's also possible that pygame.image.save is actually
> performing some compression when it saves to a png format? I'm not sure
> offhand, but something to check out.
>
>
> On Wed, Aug 13, 2014 at 10:02 AM, diliup gabadamudalige <dili...@gmail.com
> > wrote:
>
>> Sorry there was a small error in the previous message. My apologies.
>>
>> import pygame
>> import StringIO
>>
>> myimage = pygame.image.load("88keykbd.png")
>> buff = StringIO.StringIO()
>> buff.name = '88keykbd.png'
>> pygame.image.save(myimage, buff)
>>
>> putimage = buff.getvalue()
>> print "buff:", type(buff), "myimage:", type(myimage), "getimage:",
>> type(putimage)
>>
>> print len(putimage)
>> with open('myscrambledimage.dat', 'w') as newfile:
>> newfile.write(putimage)
>>
>> with open('myscrambledimage.dat', 'r') as newfile:
>> getimage= newfile.read()
>> print len(getimage)
>>
>>
>>
>> On Wed, Aug 13, 2014 at 7:30 PM, diliup gabadamudalige <dili...@gmail.com
>> > wrote:
>>
>>> can any good soul out there tell me why these two files are not the same
>>> size?
>>>
>>> import pygame
>>> import StringIO
>>>
>>> myimage = pygame.image.load("88keykbd.png")
>>> buff = StringIO.StringIO()
>>> buff.name = '88keykbd.png'
>>> pygame.image.save(myimage, buff)
>>>
>>> putimage = buff.getvalue()
>>> print "buff:", type(buff), "myimage:", type(myimage), "getimage:",
>>> type(putimage)
>>>
>>> print len(getimage)
>>> with open('myscrambledimage.dat', 'w') as newfile:
>>> newfile.write(putimage)
>>>
>>> with open('myscrambledimage.dat', 'r') as newfile:
>>> getimage= newfile.read()
>>> print len(getimage)
>>>
>>> len(putimage) and len(getimage) are hugely different in size and I can't
>>> see why as it is putimage that is written to file and then read back as
>>> getimage.
>>>
>>> Clarification on this would be immensly welcome.
>>>
>>> Thank you in advance
>>>
>>>
>>> On Tue, Aug 12, 2014 at 9:53 PM, diliup gabadamudalige <
>>> dili...@gmail.com> wrote:
>>>
>>>> Hi Radomir,
>>>>
>>>> Thanks for the response.
>>>> ok. This is what i want to do
>>>> i want to try to convert images into a string format and store them on
>>>> disk. Better if they are unprintable characters.
>>>> then when i want to see them i will run them thrugh a decryption python
>>>> script and viola they will be displayed in pygame
>>>> when i close the program again i will have only the encoded 'imageds'
>>>> on the hd.
>>>> I did this using
>>>>
>>>> get_screen = SCREEN.subsurface(0, 0, SCREENW, SCREENH)
>>>> 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)
>>>>
>>>> I wanted a better way and hence the question.
>>>>
>>>> stringio or cstringio is fine. i can save the string to disk but how
>>>> can i convert it back to an image file?
>>>>
>>>> Thank you for your help.
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Aug 12, 2014 at 11:12 AM, Radomir Dopieralski <
>>>> pyg...@sheep.art.pl> wrote:
>>>>
>>>>> On 08/11/2014 09:53 PM, diliup gabadamudalige wrote:
>>>>> > type(f) gives <type 'instance'>
>>>>> > yourimage = f.getvalue()
>>>>> > with open('myscrambledimage.dat', 'w') as f:
>>>>> > f.write(yourimage)
>>>>> > so i coukld write this file to disk
>>>>> >
>>>>> > now how can i convert this back to an image?
>>>>> > Thanks in advance
>>>>>
>>>>> What are you actually tryig to do?
>>>>> I'm sure there is a simpler way.
>>>>>
>>>>> --
>>>>> The Sheep
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Diliup Gabadamudalige
>>>>
>>>> http://www.diliupg.com
>>>> http://soft.diliupg.com/
>>>>
>>>>
>>>> **********************************************************************************************
>>>> This e-mail is confidential. It may also be legally privileged. If you
>>>> are not the intended recipient or have received it in error, please delete
>>>> it and all copies from your system and notify the sender immediately by
>>>> return e-mail. Any unauthorized reading, reproducing, printing or further
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>>>>
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>>>>
>>>>
>>>
>>>
>>> --
>>> Diliup Gabadamudalige
>>>
>>> http://www.diliupg.com
>>> http://soft.diliupg.com/
>>>
>>>
>>> **********************************************************************************************
>>> This e-mail is confidential. It may also be legally privileged. If you
>>> are not the intended recipient or have received it in error, please delete
>>> it and all copies from your system and notify the sender immediately by
>>> return e-mail. Any unauthorized reading, reproducing, printing or further
>>> dissemination of this e-mail or its contents is strictly prohibited and may
>>> be unlawful. Internet communications cannot be guaranteed to be timely,
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>>>
>>> **********************************************************************************************
>>>
>>>
>>
>>
>> --
>> Diliup Gabadamudalige
>>
>> http://www.diliupg.com
>> http://soft.diliupg.com/
>>
>>
>> **********************************************************************************************
>> This e-mail is confidential. It may also be legally privileged. If you
>> are not the intended recipient or have received it in error, please delete
>> it and all copies from your system and notify the sender immediately by
>> return e-mail. Any unauthorized reading, reproducing, printing or further
>> dissemination of this e-mail or its contents is strictly prohibited and may
>> be unlawful. Internet communications cannot be guaranteed to be timely,
>> secure, error or virus-free. The sender does not accept liability for any
>> errors or omissions.
>>
>> **********************************************************************************************
>>
>>
>
--
Diliup Gabadamudalige
http://www.diliupg.com
http://soft.diliupg.com/
**********************************************************************************************
This e-mail is confidential. It may also be legally privileged. If you are
not the intended recipient or have received it in error, please delete it
and all copies from your system and notify the sender immediately by return
e-mail. Any unauthorized reading, reproducing, printing or further
dissemination of this e-mail or its contents is strictly prohibited and may
be unlawful. Internet communications cannot be guaranteed to be timely,
secure, error or virus-free. The sender does not accept liability for any
errors or omissions.
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