Photography Stack Exchange
Photography Stack Exchange

Questions tagged [image-quality]

Image quality describes how well a photograph matches a perceived technical ideal.

While the "quality" of an image overall can be highly subjective, there are several ways in which image quality can be assessed in a technical sense. Factors which contribute to (or degrade) image quality include sharpness, lens artifacts, digital compression artifacts, noise, dynamic range, color accuracy, and more.

The Wikipedia article on Image Quality provides a good overview of many such technical factors.

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What turned the colors psychedelic?

Took this photo through the window of a Boeing 737 with a Fuji X-S1. This is an out-of-camera JPEG with no digital filters added. The water below the cloud was almost uniformly navy blue yet it came out with weird colors. Photos not taken through…
Itai
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kB vs MB - will pictures be good quality

I recently had my sons newborn shoot done and the photographer has sent me all his images in kB, is this right as I have always received MB files from previous ones. Will the quality be ok when I go to print a large size picture?
Laura Heden
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JPEG or TIFF files better for print images?

I shoot RAW and am printing a book using Adobe Indesign. The printer will get a print ready pdf, but should I save the images to Indesign as hi-res JPEGs or TIFF files for the best print outcome? I use Lightroom to edit my images so either is…
Iri
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Why there is a ripple on my image?

I'm taking several images of my company products, and this is what I considered the best shot. However, it has a sort of "rippling effect", which is more clearly visible when it's not viewed full screen. Why does this happened? I'm taking the…
Vylix
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How to measure the image quality of a DSLR camera

How do we compare the image quality of two cameras? Do we have some tangible parameters to make such an assessment, and what are the main aspects of the image which contribute to image quality? Is image sharpness one of the criterion for image…
sohail Akbar
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What is meant by Subjective Image Quality (SQF)?

What does the SQF result in the Imatest Documentation mean? I don't understand the graph showing SQF against Picture Height. How should I calculate SQF value for the camera being tested. For example, the SQF value is 85 when the picture height is…
petalse
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Does the Dropbox app disintegrate photos the same way iCloud does?

On iOS devices, having “ iCloud photos” and “optimize storage” turned on causes photos on the device to be replaced with low quality versions. Is this the same situation with the Dropbox app?
Mariana Beaumont
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Why is there a loss of quality from camera to computer screen

When i take a photo it looks bright, sharp and vibrant colours, but when it is transferred to my computer it looks so bad. Very dull and dark with weak colours. I have to brighten and increase contrast plus give it lots of colour saturation to get…
patrick quinn
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Low quality photos even at superfine mode

I just purchased a Canon Powershot SX240 HS. I took a few pictures indoors (with the lights on as it is dark outside) and I am unimpressed. Zooming in on this on my PC, I can see they're grainy and bad quality. I tried doing this with the fine…
user22903
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Robert Frank photo

This iconic photo by Robert Frank is baffling me. There is a yellowish portion diangonally in the lower right area. I assumed it was damaged, but upon consulting with a photo restorer I was told it was developed like this. It is signed by him.…
Danni
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What does “frequency” mean in an image?

I saw similar question and several good answers at here What does "frequency" mean in an image? but, I actually couldn't understand about those answers. "Is it right that the higher the frequency, the more detail that picture is?"
Sanghyo Kim
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Quality from camera to phone

If a picture taken with canon rebel t6 is sent to my Android phone, will it look the same printed from my phone vs the sd card from camera. Want to have a picture printed to canvas, originally taken on camera and then sent to my phone.
Joye
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I open the image it's blurry, I zoom in it's sharp either in photo viewer or photoshop

All images I open in photoshop or just in a windows photo viewer look blurry when zoomed out and clear when zoomed in ( honestly I open the image and it's blurry, I zoom in it's sharp). Whats going on? At the moment, I am stuck and I couldn't find…
monika
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How do you increase the amount of pixels in the width of your photo?

I have taken a photo in early November using my iPad mini when the weather was still really nivpce and warm. I would hate to not show it because for once, I'm pretty proud of my photos. I'm trying to enter it into a contest, and it keeps saying that…
Rachel.rawls
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Does using more than one step-up ring affect quality?

Hi I'm new to photography / videography and would like to know if using 2 or 3 step-rings would cause any vignetting, flaring, or any sort quality reduction? My case is I'd like to step-up from 49-72mm but being fussy I like the appearance of the…
Emanradin
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