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#1
Jan 18 2023 08:44am
Hi everyone !

i know trying to get a photography biger would change the quality, and for a vectorial picture this would not affect the quality ... but my question is about a photography of an oil painting ? for example, if i have it in 120dpi quality and like size 20x30cm, will i reduce the quality if i use photoshop to get 300dpi and like 40x60cm ?

cheers
Max
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#2
Jan 18 2023 09:30am
Quote (CHIWAWA @ Jan 18 2023 02:44pm)
Hi everyone !

i know trying to get a photography biger would change the quality, and for a vectorial picture this would not affect the quality ... but my question is about a photography of an oil painting ? for example, if i have it in 120dpi quality and like size 20x30cm, will i reduce the quality if i use photoshop to get 300dpi and like 40x60cm ?

cheers
Max


anything that isnt vector loses some quality but it varies on the subject matter how much quality seems lost, id recommend ai upscaling
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#3
Jan 18 2023 09:44am
Quote (MrPond @ Jan 18 2023 04:30pm)
anything that isnt vector loses some quality but it varies on the subject matter how much quality seems lost, id recommend ai upscaling


thanks for recommandation, and what if i dont have ai ? any suggestion with photoshop ?
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#4
Jan 18 2023 10:09am
Quote (CHIWAWA @ Jan 18 2023 03:44pm)
thanks for recommandation, and what if i dont have ai ? any suggestion with photoshop ?


just google ai upscaler theres plenty of free ones.
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#5
Jan 18 2023 10:17am
I might be able to help, is this something that can be printed? It definitely will be reduced but there are MINOR ways around it but as Mr Pond said the quality will be sacrificed.
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#6
Jan 19 2023 11:29am
Quote (MrPond @ Jan 18 2023 05:09pm)
just google ai upscaler theres plenty of free ones.


i will check, thanks :love:

Quote (Laoshun @ Jan 18 2023 05:17pm)
I might be able to help, is this something that can be printed? It definitely will be reduced but there are MINOR ways around it but as Mr Pond said the quality will be sacrificed.


those will have to be printed indeed, this is why the quality is important.

what about if i have a file (still a picture of an oil painting) in low quality (like 120dpi) but bigger size than the requested size for printing ? it seems i have some pictures with 120dpi and size like 20x30 or 30x40cm ... i will need them to be printed in 5x8cm and possibly in 12x17cm ... if i change those files into a 300dpi and maybe use ai to do the thing Mr Pond is advicing, will this be a good option ? ;)

Thanks for helping mates !
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#7
Jan 19 2023 11:32am
Quote (CHIWAWA @ Jan 19 2023 11:29am)
i will check, thanks :love:



those will have to be printed indeed, this is why the quality is important.

what about if i have a file (still a picture of an oil painting) in low quality (like 120dpi) but bigger size than the requested size for printing ? it seems i have some pictures with 120dpi and size like 20x30 or 30x40cm ... i will need them to be printed in 5x8cm and possibly in 12x17cm ... if i change those files into a 300dpi and maybe use ai to do the thing Mr Pond is advicing, will this be a good option ? ;)

Thanks for helping mates !


If the end result is 5x8cm / 12x17cm that is more than enough even at 150dpi to be able to retain a decent print based on your original pictures. I would say it can be anywhere from 240-300dpi at best case and acceptable is still around the 150dpi range if that makes sense.
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#8
Jan 19 2023 11:39am
Quote (Laoshun @ Jan 19 2023 06:32pm)
If the end result is 5x8cm / 12x17cm that is more than enough even at 150dpi to be able to retain a decent print based on your original pictures. I would say it can be anywhere from 240-300dpi at best case and acceptable is still around the 150dpi range if that makes sense.


this is good to learn, thanks ;)

what would you recommand for a 30x40cm printing with the same files ?
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#9
Jan 19 2023 11:44am
Quote (CHIWAWA @ Jan 19 2023 11:39am)
this is good to learn, thanks ;)

what would you recommand for a 30x40cm printing with the same files ?


well the upscale still holds true from what was mentioned above, its more so a tight walk game of if it is "good enough" with the same range of dpi and will you notice or care. As the enlargement isn't THAT much.

The other scenario was a downside scenario. There are also ways to semi-mask the enlargement quality loss as well. Harder for me to voice via text.
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