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Help: Enlarging Photos w/o Losing Quality


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If we had access to the original RAW file there would be a lot more flexiblity. The starting point is a lossy JPEG and the original file uses the C2 ICC Profile which as far as I can tell is something developed by facebook to reduce file sizes even further, so it's perhaps not surprising about the banding, though having played a bit more, this version doesn't seem too bad but I'd still be inclined to reject this image and find a better original source image...

1553445323_LeopardResampled4XBR300dpi.thumb.jpg.11951c6a97fdd9f792fc64c0e4a8b42c.jpg

Leopard Resampled 4XBR 300dpi.afphoto

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MacBook Pro 16GB, macOS Monterey 12.6.8, Magic Mouse

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@Hangman  Yes, I agree. I have debated reaching out to the photographer and asking for the original image source from him.

Here is another example from a photographer from our publication department. 

He took this with his own camera and gave me the original file. I'm assuming that I could print this at 24x36 with no blurriness/pixelation?

DSC00139-3.jpg

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6 hours ago, bk_chelly said:

Here is another example from a photographer from our publication department. 

He took this with his own camera and gave me the original file.

What is the file type of the original file & what are its dimensions? As uploaded it is a JPEG & I think it is only around 1000 px wide, but that could just be how the forum software processes it or the way I extracted it from the forum page.

For something like this, it might be best to zip the original file & upload that....

All 3 1.10.8, & all 3 V2.4.1 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7
Affinity Photo 
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14 hours ago, Hangman said:

I would argue still not as well as Affinity Photo itself...

The lion image with its lots of details shows the strengths of GigaPixel AI: It smoothens contours in the upscaling process & reduces the pixelated artefacts without causing blurriness. Also PhotoZoom smoothens edges but less clear than GigaPixel AI. APhoto shows the pixelated artefacts most obvious. (samples image width 2160 px)

1182328337_lionA1-5.thumb.png.3febefcefd2b4e629929c6d840ed1f8c.png

1055243919_lionB1-5.thumb.png.cf665195045a08fc3030c0bbad9b181c.png

macOS 10.14.6 | MacBookPro Retina 15" | Eizo 27" | Affinity V1

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On 8/19/2022 at 5:32 PM, R C-R said:

What is the file type of the original file & what are its dimensions? As uploaded it is a JPEG & I think it is only around 1000 px wide, but that could just be how the forum software processes it or the way I extracted it from the forum page.

For something like this, it might be best to zip the original file & upload that....

image.png.99bd334b41d948a50ef6ace7768884e0.png

 

these are the specs on the photi

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