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PIL reducing image size just by opening and saving


python PIL save image different size originalHow do I resize an image using PIL and maintain its aspect ratio?Twitter image encoding challengeSave plot to image file instead of displaying it using MatplotlibChanging image size in MarkdownPIL - Pasting/saving image as .jpgPIL Image resize compresses the image when is not expected topython PIL save image different size originalReduce image size in C#Why does the size of the jpg file reduce when we open and save an image using PIL in python?Trying to open image with PIL






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








0















I have these lines of code which open an image nature.jpg using PIL and again save it by the name new_nature.jpg



from PIL import Image
im = Image.open("nature.jpg")
im.save("new_nature.jpg")


When I checked the sizes of the files, they were like this:

nature.jpg -> 1.3 MB (13,28,902 bytes)

new_nature.jpg -> 636.4 kB (6,36,354 bytes)

Their image type and resolution both were same.

This is the link for the image: http://www.youandthemat.com/wp-content/uploads/nature-2-26-17.jpg

Can anyone tell me why is this happening ?










share|improve this question



















  • 1





    Possible duplicate of python PIL save image different size original

    – MFisherKDX
    Mar 27 at 20:26











  • Since JPEG is lossy, it's quite likely that even if you got all the parameters identical, the re-compressed image will be different (both in size and in content). If the quality settings (in your code left to default value) differ from the original (as seems to be in this case), that size difference will be significant.

    – Dan Mašek
    Mar 27 at 21:37

















0















I have these lines of code which open an image nature.jpg using PIL and again save it by the name new_nature.jpg



from PIL import Image
im = Image.open("nature.jpg")
im.save("new_nature.jpg")


When I checked the sizes of the files, they were like this:

nature.jpg -> 1.3 MB (13,28,902 bytes)

new_nature.jpg -> 636.4 kB (6,36,354 bytes)

Their image type and resolution both were same.

This is the link for the image: http://www.youandthemat.com/wp-content/uploads/nature-2-26-17.jpg

Can anyone tell me why is this happening ?










share|improve this question



















  • 1





    Possible duplicate of python PIL save image different size original

    – MFisherKDX
    Mar 27 at 20:26











  • Since JPEG is lossy, it's quite likely that even if you got all the parameters identical, the re-compressed image will be different (both in size and in content). If the quality settings (in your code left to default value) differ from the original (as seems to be in this case), that size difference will be significant.

    – Dan Mašek
    Mar 27 at 21:37













0












0








0








I have these lines of code which open an image nature.jpg using PIL and again save it by the name new_nature.jpg



from PIL import Image
im = Image.open("nature.jpg")
im.save("new_nature.jpg")


When I checked the sizes of the files, they were like this:

nature.jpg -> 1.3 MB (13,28,902 bytes)

new_nature.jpg -> 636.4 kB (6,36,354 bytes)

Their image type and resolution both were same.

This is the link for the image: http://www.youandthemat.com/wp-content/uploads/nature-2-26-17.jpg

Can anyone tell me why is this happening ?










share|improve this question














I have these lines of code which open an image nature.jpg using PIL and again save it by the name new_nature.jpg



from PIL import Image
im = Image.open("nature.jpg")
im.save("new_nature.jpg")


When I checked the sizes of the files, they were like this:

nature.jpg -> 1.3 MB (13,28,902 bytes)

new_nature.jpg -> 636.4 kB (6,36,354 bytes)

Their image type and resolution both were same.

This is the link for the image: http://www.youandthemat.com/wp-content/uploads/nature-2-26-17.jpg

Can anyone tell me why is this happening ?







python image compression python-imaging-library






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Mar 27 at 20:24









trahultrahul

12 bronze badges




12 bronze badges










  • 1





    Possible duplicate of python PIL save image different size original

    – MFisherKDX
    Mar 27 at 20:26











  • Since JPEG is lossy, it's quite likely that even if you got all the parameters identical, the re-compressed image will be different (both in size and in content). If the quality settings (in your code left to default value) differ from the original (as seems to be in this case), that size difference will be significant.

    – Dan Mašek
    Mar 27 at 21:37












  • 1





    Possible duplicate of python PIL save image different size original

    – MFisherKDX
    Mar 27 at 20:26











  • Since JPEG is lossy, it's quite likely that even if you got all the parameters identical, the re-compressed image will be different (both in size and in content). If the quality settings (in your code left to default value) differ from the original (as seems to be in this case), that size difference will be significant.

    – Dan Mašek
    Mar 27 at 21:37







1




1





Possible duplicate of python PIL save image different size original

– MFisherKDX
Mar 27 at 20:26





Possible duplicate of python PIL save image different size original

– MFisherKDX
Mar 27 at 20:26













Since JPEG is lossy, it's quite likely that even if you got all the parameters identical, the re-compressed image will be different (both in size and in content). If the quality settings (in your code left to default value) differ from the original (as seems to be in this case), that size difference will be significant.

– Dan Mašek
Mar 27 at 21:37





Since JPEG is lossy, it's quite likely that even if you got all the parameters identical, the re-compressed image will be different (both in size and in content). If the quality settings (in your code left to default value) differ from the original (as seems to be in this case), that size difference will be significant.

– Dan Mašek
Mar 27 at 21:37












1 Answer
1






active

oldest

votes


















1















JPEG images can be compressed and saved in different qualities.
The quality can be any number between 1 (worst) and 95 (best). the default saving quality is 75, and to get a better quality image you should try something like this:



from PIL import Image
im = Image.open("nature.jpg")
im.save("new_nature.jpg", quality=95)


Read docomentishion here.






share|improve this answer
























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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1















    JPEG images can be compressed and saved in different qualities.
    The quality can be any number between 1 (worst) and 95 (best). the default saving quality is 75, and to get a better quality image you should try something like this:



    from PIL import Image
    im = Image.open("nature.jpg")
    im.save("new_nature.jpg", quality=95)


    Read docomentishion here.






    share|improve this answer





























      1















      JPEG images can be compressed and saved in different qualities.
      The quality can be any number between 1 (worst) and 95 (best). the default saving quality is 75, and to get a better quality image you should try something like this:



      from PIL import Image
      im = Image.open("nature.jpg")
      im.save("new_nature.jpg", quality=95)


      Read docomentishion here.






      share|improve this answer



























        1














        1










        1









        JPEG images can be compressed and saved in different qualities.
        The quality can be any number between 1 (worst) and 95 (best). the default saving quality is 75, and to get a better quality image you should try something like this:



        from PIL import Image
        im = Image.open("nature.jpg")
        im.save("new_nature.jpg", quality=95)


        Read docomentishion here.






        share|improve this answer













        JPEG images can be compressed and saved in different qualities.
        The quality can be any number between 1 (worst) and 95 (best). the default saving quality is 75, and to get a better quality image you should try something like this:



        from PIL import Image
        im = Image.open("nature.jpg")
        im.save("new_nature.jpg", quality=95)


        Read docomentishion here.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Mar 27 at 22:51









        RealA10NRealA10N

        741 silver badge9 bronze badges




        741 silver badge9 bronze badges



















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