Upressing Panasonic Images

[sanveer]

A lot of people feel that one of the few complaints about the M4/3rd system, apart from bad low light, is that most cameras are restricted to 16MP as the top resolution (except those carrying the newer 20MP Sony Sensor). 

While the kit lens on the cameras is decent, by most standards, it far from excellent. So, maybe with the Better M4/3rd glass, this will be better. 

I, as a general test, Downloaded a Pic from a site (www.imaging-resource.com), pf the Panasonic Lx100 and then upressed it by 20%. I find that the image has held up pretty well (though the file size has gone up enormously).

I know that Alexa has upressed their 2.7k camera image to 4k, and nobody really had any complaints. I don't see why, if M4/3rd photos aren't over sharpened, they cannot be upressed. 

Any anyone tried this too? What software did you use?

I feel, with some of the Panasonic Leica Glass, and setting of color, contrast and sharpness dialled down, almost all (16MP) M4/3 photos can be upressed to 20MP, comfortably, without any noticeable loss of quality. 

What do you guys think?

[BrorSvensson]

Why would one upress an image? You wont be getting more detail.

[sanveer]

1 minute ago, BrorSvensson said:

Why would one upress an image? You wont be getting more detail.

I agree. It's the same upressing 2.7k to 4k. Some clients want larger Files and Pics. 

[Mattias Burling]

1 minute ago, BrorSvensson said:

Why would one upress an image? You wont be getting more detail.

For videos on youtube you do. But for stills I don't see it.

[Danko]

Upressing makes sense when printing to send the native ppi-s to the printer drive. Following the same logic, client may ask you the same for when they are being asked to deliver a certain size, ppi, colour space for prepress.

In the end, it all revolves around interpolation and sharpening.

It starts with initial sharpening of the input file, interpretation of the raw file. Then there are several specialised programs for interpolation but few years ago adobe bought a great one and output resizing with output sharpening (adobe has bought and incorporated a technology for this as well) from Lightroom works great. Other option is Photoshop, again, engine and algorithm is same, it offers you to chose what kind of interpolation you want and output sharpening is done before the final "save", usually using the USM. Big advantage of Photoshop is that it lets you change bit depth of the files, colour space.

There's a whole science behind it and if you ever thought that colour science in video is complicated, try digging into this.

[TheRenaissanceMan]

There's been a lot of discussion about this on the Mu43 User Forum. In short: shoot with good technique, use a sharp lens, and you can print large with very little worry. Don't let the numbers scare you. 

[sanveer]

15 hours ago, Danko said:

Upressing makes sense when printing to send the native ppi-s to the printer drive. Following the same logic, client may ask you the same for when they are being asked to deliver a certain size, ppi, colour space for prepress.

In the end, it all revolves around interpolation and sharpening.

It starts with initial sharpening of the input file, interpretation of the raw file. Then there are several specialised programs for interpolation but few years ago adobe bought a great one and output resizing with output sharpening (adobe has bought and incorporated a technology for this as well) from Lightroom works great. Other option is Photoshop, again, engine and algorithm is same, it offers you to chose what kind of interpolation you want and output sharpening is done before the final "save", usually using the USM. Big advantage of Photoshop is that it lets you change bit depth of the files, colour space.

There's a whole science behind it and if you ever thought that colour science in video is complicated, try digging into this.

I need to read up on this. 

 

8 hours ago, TheRenaissanceMan said:

There's been a lot of discussion about this on the Mu43 User Forum. In short: shoot with good technique, use a sharp lens, and you can print large with very little worry. Don't let the numbers scare you. 

I will definitely check out the forum. Thanks