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Questions tagged [resolution]

quantifies how much detail an image can convey

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112 views

Is 24MP actually matched to Full-HD Resolution when factoring in the differences on how pixels are defined?

Naive assumption: 24MP sensor vs a Full HD monitor of 2MP, sensor has much more resolution. Second look: You sample something that is not synchronous to your sampling raster/clock, you need to ...
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1answer
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Calculate the maximum DPI a camera can shoot [duplicate]

I am trying to determine at what DPI a certain camera can shoot, namely this model, however the technical specs at the official site do not give any details about it. Is there a way to calculate ...
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How do i find the distance required to resolve a point on a page from a mobile camera?

Given all details such as focal length , aperture etc , how can i find the size of a point on a paper that is at a given distance from a mobile camera ? Or vica versa , the distance required to ...
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2answers
416 views

Lumix G7: Raw photos only in 1920x1440, no higher res available

On a G7 I bought used the images come with a 4592x3448 resolution for JPEG and 1920x1440 for raw. When I switch the mode to RAW only, the resolution/image size option in the menu is greyed out. Is ...
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2answers
61 views

Effect of increasing sensor size or focal length on resolution of target object

Suppose I have a camera of sensor size 8mmx8mm, optical class (2/3)" with a compatible lens of also (2/3)". The focal length of my lens is fixed (say 8mm), and the distance to my target object is also ...
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4answers
415 views

Does higher resolution in an image imply more bits per pixel?

I have been trying to understand how a better spectrum of color can be represented in an image and to avoid banding it sounds like the image would need to have more bits per pixel. When the resolution ...
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3answers
871 views

How to determine the actual or “true” resolution of a digital photograph? [duplicate]

What I mean by "true" resolution is the resolution at which the maximum available amount of real detail is present. For an ideal picture this resolution is the same as the resolution encoded in the ...
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2answers
128 views

how to take a custom resolution using a canon camera

Currently I'm having my staff take mass pictures of items from convenient store in order to populate the images of items in our e-commerce site. I have a Canon EOS 200D camera. My target ...
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1answer
90 views

High resolution photography with C API and optical zoom [closed]

I am currently looking for solutions to take high resolution photos of objects via a dedicated software. (The software will be developed by myself.) Therefore I am looking for ideas for cameras, where:...
2
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1answer
41 views

View at given print size

What is a good way of viewing an image at the same physical scale as a given print size? E.g. say I want to print an image at 40x60cm. How do I (most easily) display the image so that 1cm on my ...
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4answers
181 views

Pixels and photodiodes

A photodiode is the smallest element of a digital sensor, while a pixel is the smallest piece of information in a digital image. I wonder if the two terms can be used interchangeably or there are some ...
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1answer
68 views

Can only take 12MP photos on my 16MP Sony DSC H100

I bought this camera at a quarter of its price and just noticed I seemingly can't take pictures at its full resolution (16MP). The only available options are 2 and 12MP. Any clues?
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1answer
127 views

Why do dedicated video cameras have such low resolution sensors? [closed]

For instance, the Canon XF405 camcorder has an 8.2 megapixel sensor, yet it costs over $3000 USD. Whereas even a iPhone 6s has a 12 megapixel sensor. Why do dedicated video camera have sensors with ...
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3answers
119 views

Full resolution at less-desired aspect ratio or less resolution at desired aspect ratio?

I come from the world of film cameras, where larger negatives are generally preferred over smaller negatives because they generally can hold more information and detail. Now, with digital cameras, ...
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2answers
113 views

How can I find the width and height of pixels on a camera display?

I am trying to determine the width and height of the LCD on the camera. I will use the Canon EOS-1DX Mark II as an example. The display is written as 1,620,000 pixels. This is not intuitive to me as ...
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2answers
156 views

Best Camera To Purchase for my Vacation [closed]

I'm going on a few vacations soon and am thinking about purchasing a new camera. Currently I just use my iPhone 6s. I've been searching the internet endlessly it seems and have came across these few ...
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2answers
196 views

What image/camera/lens quality metrics are relevant for resolving human subjects?

I am attempting to gather data for creative historical purposes. However, I'm a computer scientist, not a physicist or a photographer, and there seem to be a gazillion considerations. The environment ...
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3answers
191 views

What is wrong with this photo? [closed]

I just got a new camera (Panasonic ZS60) and I've been running into a few problems/questions while testing. Mostly it seems like leaves have a low-resolution, watercolor-like appearance in low-light ...
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4answers
351 views

Given aperture and focal length, what is the minimum distance for maximum resolution? [closed]

I'm going to describe a physics experiment involving imaging a proton beam using a CCD camera by reflecting it on a aluminium oxide surface, and we need some help about how close the camera should be ...
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1answer
319 views

What are Olympus' best in-camera Jpg settings for facebook

I usually shoot raw and make minimal in-camera post-processing with my O-M10 Mark II before exporting the photos to Facebook. Did anyone figure out what are the best in-camera jpeg resolution and ...
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3answers
4k views

Are online photos safe from damage?

The photos on one of my Facebook accounts seem to have lost a significant amount of resolution after they had already been posted. This account has other issues, for example, my timeline review is ...
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2answers
138 views

What is the resolution of the HDMI output on Olympus mirrorless cameras?

I have an Olympus E-PM2 and would like to know the maximum resolution (and possibly refresh frequency) of the camera HDMI output. The end aim is to connect it to a high-resolution, high-gamut ...
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1answer
92 views

Print Resolution [duplicate]

I've made several collages and wanting to print an 8 x 10 I'm constantly told "there will be a resolution" problem. I guess I'm ignorant of what happens when I reduce the "huge" jpg to a smaller size....
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1answer
6k views

What does “12MP + 12MP Camera” mean in the specs of a mobile phone?

I have seen some mobile phone specifications that mention "12MP + 12MP Camera", such as these specs for a Samsung Note 8: 12MP + 12MP Camera 8MP Front Camera 6.3" Display 64 GB Memory 6 GB Ram 2.3 + ...
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3answers
109 views

Before printing: manual vs printer resizing?

For example, for printing a big size image to an A4 page, its better to resize it manually to exact A4 size, or let printer software set it automatically? is there any difference on sharpness, etc?
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2answers
185 views

What resolution can I reach with a B/W paper negative?

I would like to expose some B/W chemical photopaper directly in a large format camera to obtain paper negatives. What is the maximum effective resolution I could obtain on said paper? assuming a ...
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1answer
71 views

How many Pixel for this print? [closed]

I need to make a Drawing in photoshop. This drawing will be printed on a 2A0 size (double the A0), and will have lots of names on it. The smalles ones will be about 2cm in height. Then in a later ...
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1answer
201 views

Can a blind person resize a photo independently?

I am a totally blind computer user. I encountered an accessibility barrier when I was attempting to use the site http://www.vitalchek.com/ to order a birth certificate. They require you to scan or ...
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3answers
4k views

What is a resolution unit?

Please note, I'm not asking what resolution is! I've processed a raw image and exported from Photoshop, and I've just noticed something in the image details that I've never seen before (I don't think)...
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2answers
168 views

Simulating increasing image distance

I have a set of aerial images, but no information about the original camera or angular resolution of the photos. I need to in some way decrease the resolution of the images in a way that simulates ...
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1answer
105 views

Can anybody recover pictures or data from a SD Card other than the Owner? [closed]

I have a Android phone and the SD Card got corrupted. It had pictures of important information and I want to know if someone other than myself can retrieve the pictures or data?
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3answers
93 views

Troubleshooting an image [duplicate]

I have an image, below, that seems "soft" and I'd like to know why. Possibly it was resized from something like 3000 x 3000 and not sharpened. Possibly it's a 500 x 500 image, expanded to 960 x 960. ...
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2answers
286 views

How do I maintain a high resolution when cropping a photo I want to enlarge after post processing?

I want to crop a photo that I will want to enlarge after post processing. What do I need to do to keep a high enough resolution after cropping in order to enlarge the photo and still maintain a high ...
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2answers
127 views

How to get the largest size file possible from my DSLR for a large advertisement print?

For this first time, I am putting images on larger advertisement piece (8' x 5'). I am using a Canon T3i. When I pull photos from the memory card are the photos in the largest format possible? The ...
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1answer
235 views

Determining the size of the smallest resolvable detail for a given camera

My generic question: Given camera specifications, e.g: sensor resolution, sensor image area, pixel size (area), optical size, focal length (ratio), fov (horizontal and/or vertical) and ...
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1answer
258 views

Is it a bad idea to use a retina display for retouching? [closed]

If I edit on a retina display, when I open the processed photos on a low density display at 100% they look pretty soft to me, as I didn't apply enough sharpening. Since I can see much more details ...
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2answers
4k views

How many megapixels is a 1000 pixel image?

I am asked to set some photos to 1000 pixel in order to make them smaller using the Irfan View program, but the program only accepts in megapixels. So, how many megapixels is 1000 pixel??
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1answer
163 views

What is a practical application of the SQRI image quality metric?

In some research, I have found that the perceived quality of an image is linearly related with the square root of the normalized modulation. Perceived contrast of sinusoidal luminance patterns is ...
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4answers
320 views

Why are there no digital large format photographic imaging sensors using the TFT technology from medical x ray imaging?

Recently I witnessed an x ray imaging of an entire thorax, and I was pretty sure it was a film cassette with analogue film that was used, but was taught that it was a digital sensor. This sensor had ...
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1answer
138 views

Do high export resolutions compromise image safety? [duplicate]

I specialize in macro photography and I've recently begun to export in 300-350dpi, as I find it does a better job of representing details (crucial to my work). However the file size is small, eg. ...
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2answers
3k views

What is the resolution of a satellite image when measured in centimeters and meters?

I came across this collection of sample satellite images with very large files - for instance, one photo has 11000 x 9000 pixels and its file size is 49 MB. However, what I find strange is that they ...
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6answers
2k views

Does aliasing occur in film photography?

I have observed aliasing with digital photos and videos. While film does not have infinite resolution, it appears that film grain does not have the regularity of a digital sensor, so aliasing may not ...
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3answers
119 views

Is it possible to upgrade Canon 1100D screen to one with better resolution?

While the question as per title can naturally be answered with "Just get a better camera", I still would like to know for the following reason: my 1100D still has some life in it and because I'm just ...
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1answer
444 views

RAW Image Resolution from Mono vs RGB bayered CMOS sensors [closed]

What is the resolution difference between a RAW image taken with a monochrome sensor vs a RAW image taken with a sensor with a Color Filter Array? With a color sensor, I know that sensitivity and QE ...
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4answers
2k views

Why does a more expensive camera have fewer pixels?

I compared the specs of some cameras. The Canon EOS 5DS and the EOS-1D X MARK II each has a full-frame sensor. The second is more expensive. Their pixel counts are 8868 x 5792 and 5472 x 3648. Nikon ...
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1answer
163 views

At which point do cameras scale photos down when using quarter sensor resolution?

My Nikon D5600 sensor can deliver 24MP but I configured it to just use 6MP. At which step in the process does the camera "scales" the images down? Maybe already at sensor level? By calculating an '...
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2answers
296 views

How high resolution can a picture be before the human eye stops caring?

I found an article discussing a collective that sells ludicrously high resolution panoramas, at least one of which is comprised of over 1000 images with a resolution of 7 gigapixels. Other than ...
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3answers
370 views

Shooting large tree from a distance: resolution/details issue

Recently I take a shot of a big tree and encountered some issues with the image resolution. Here is the image after postprocessing: To make scale clear (how tall the tree is and how far I stand from ...
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4answers
240 views

Which is correct, “resolution is megapixels” or “resolution has megapixels”?

A colleague and I were having a discussion about which of these is correct: "This resolution is 15 megapixels" or "This resolution has 15 megapixels" What it comes down to is our difference in ...
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1answer
244 views

Large difference between number of image sensor pixels and pixels in the image from my iPhone

According to the specifications given by Apple, the iPhone 5s camera has 8 megapixels. I assume that this is supposed to mean that the image sensor has 8 million photosites, and I would appreciate it ...