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167
votes
12answers
21k views

Why are pixels square?

Pixels in screens are square, but I'm not sure why. Both pixelated images look pretty bad - but I'm not sure there's any advantage of squares over hexagons here. Hexagons also divide up into 3 ...
0
votes
0answers
20 views

Pixel pitch of a monitor

How can the pixel pitch of a monitor be double another monitor if they both have the same resolution and are the same size? E.g., Acer B6 Series B286HK and ASUS PB287Q.
1
vote
0answers
20 views

What are dark pixels on my SONY PRS-T1 Ebook Reader? [closed]

Has anyone experienced this? What is this dark pixel on my SONY PRS-T1 Ebook Reader shown in the image?
2
votes
1answer
223 views

4k Monitor. Higher PPI than iMac 27". More Pixelated than iMac

I'm looking to understand exactly why a monitor with higher number of pixels per inch (albeit slightly so), than the standard 27" iMac, cannot produce image that is at least just as sharp as images on ...
-6
votes
1answer
52 views

How many pixels wide is a pinned tab in Chrome? [closed]

I'd like to know how many tabs I can pin into a single browser window on my 1280 x 800 px Chromebook, but I want to use math-magic to find out instead of just pinning a bunch of tabs and counting ...
0
votes
3answers
136 views

How can I reduce brightness extremely without change pixel RGB values of screen?

How can I reduce brightness extremely without change pixel RGB values of screen? I want to reduce my screen's brightness extremely (like %100 to %5). I want to satisfy this two issues together: ...
0
votes
1answer
52 views

Small grey streak on screen visible with black background

I don't know how or why but I recently started noticing a small grey streak visible on my screen with a dark or black background. What is this? And what can I do to fix this?
0
votes
1answer
69 views

How to replace a colour by another colour using paint.net

I am working on a web template and I want to replace the default red colour by green colour. For example I have this picture:- Where I want to replace the red with green color.so I did the ...
0
votes
2answers
146 views

How Supersampling Anti-Aliasing works?

From reading online I understand the basic idea of how Supersampling Anti-Aliasing works, it renders the scene at a higher resolution that the user's display, uses the extra pixels to calculate an ...
4
votes
2answers
970 views

How do I tell the dimensions of the current selection in GIMP?

Oftentimes, I need to measure the dimensions of part of an image (in pixels). In Photoshop, I can make a rectangular selection and see the dimensions in the "Info" window (or something like that). How ...
0
votes
0answers
42 views

Weird moving pixels on both monitors

I recently had my laptop repaired and a few days after receiving it back, I noticed these weird moving pixels on my screen. They started of quite unnoticeable but a few months down the track and they ...
0
votes
0answers
33 views

Is it possible to always replace pixels of a certain color in Windows 7?

I would like to mandatorily swap pure white pixels on my PC with another color for example grey, so that the graphics driver never sends out a pure white pixel. All the other pixels of the pc should ...
0
votes
2answers
114 views

Red dots on my new laptop?

I just purchased a new laptop with Intel HD 4400 with a dedicated NVIDIA GTX 970m graphic card. When I booted up everything was fine, but after I set up the computer I updated the NVIDIA drivers and ...
0
votes
0answers
37 views

What happened to this pixel?

I have what seems like a dead pixel on my screen, but when I take a picture of it and zoom in it looks different. Original Image
1
vote
1answer
897 views

Show Pixel ruler in Visual Studio 2013

I use Visual Studio 2013 and want to use a Pixel ruler in the designer. I saw some screenshots on the internet but don't know how to display the ruler or if I have to install a plugin or something.
1
vote
1answer
921 views

How to calculate bytes need for an image with 256 level gray scale

When the size of a still image is 1,600 x 1,200 pixels and each pixel has a 256-level gray scale ranging from 0 to 255, approximately how many megabytes are needed at least to store five such ...
0
votes
1answer
14 views

Transfering objects between images in GIMP

When I mark and drag over and object from one picture to another it changes colors (to the other pictures palette) and that makes it look really bad. How can I prevent that?
0
votes
0answers
8 views

Flickering pixels and polygons [duplicate]

My computer is running Windows 7, and recently I have noticed flickering white pixels on the edges of UI elements (windows, icon buttons, icons and text). The pixels seem to border these elements. ...
0
votes
0answers
211 views

Comparing Pixels per Inch - monitor x tablet

The PPI is a standard for comparing display quality across different devices, right? I calculated that a cheap tablet has 1024 x 800 pixels in a 10 inches screen, which using the formula gives us 129 ...
-1
votes
1answer
93 views

How are pixels drawn on an LCD screen? [closed]

Could you please tell me how a computer draws an pixel on an LCD screen. I have come to know that lines are drawn using pixels. However I couldn't get how could a pixel be plotted?
1
vote
0answers
123 views

Adobe Illustrator changes dimension to .001

I'm working in a document with properties and rulers set to pixels. I have several different closed paths (some are simple circles with 1px stroke, others are not-so-complex compound paths). The ...
0
votes
0answers
70 views

Strange pixels showing up in programs

So I just got my new pc and I noticed that there are a lot of multicolored pixels all over certain programs like shown in the screenshot: This is on my brand new Asus rog g750jm-ds71. These pixels ...
2
votes
1answer
378 views

How can I encode a video for my non-square pixel display?

My car stereo has a 800x480 display but is physically 16x9 so I believe it uses non-square pixels. The documentation says it says (2 400x480) so I think it's describing a 2:1 pixel aspect ratio (?). ...
1
vote
1answer
183 views

How do I disable Magnifier's “smoothing” filter in Windows 7?

I would prefer to have a "nearest-neighbor" scale mode in the Magnifier (where each original pixels is rendered as a large square, not blurred between eachother). Is there an option to change that, ...
2
votes
1answer
61 views

Explain the correlation between PPI and resolution

I understand this is a very novice question to ask but I just want to make sure I have a firm grasp on the concept(s) Resolution is how many pixels displayed on a screen by height x width. How does ...
3
votes
2answers
18k views

What is the pixel clock setting on my monitor actually doing?

I am experiencing display interference on a dell 24" flat panel monitor.I find that if I adjust the pixel clock settings up or down in the monitor's on-screen menus, the interference goes away for a ...
0
votes
1answer
161 views

Different pixel attributes of images/frames in a video [closed]

What different attributes can a pixel of a video file contain? For eg, rgb values, sharpness etc. Does every type of video files and images have all these attributes or only some that are new ...
3
votes
2answers
161 views

How to vector a logo?

I'm trying to convert the logo I've built in photoshop to a vector so I can resize it to fit different app and mobile screens. I've tried the live trace in illustrator function but that just distorts ...
-3
votes
4answers
837 views

Which type of image has high quality vector or pixel (raster)?

I used GIMP to create images, but, since I needed to produce higher quality images, I recently switched to Inkscape. Now I have created a sample text with black background in it, and I am not able see ...
-1
votes
2answers
42 views

How do I measure screen width and screen depth?

I would like to know whether you might have a quick program which measures screen width and screen height. For example, starting off reading left to right (or right to left), I would like to know ...
0
votes
3answers
485 views

Does changing a display's resolution turn display's pixels off?

When a display (LCD, LED, OLED, etc) changes its display resolution, are pixels on the display "turned off"? Meaning, are the same number of pixels on the display being used to show an image with ...
1
vote
1answer
524 views

Alternative to DPI Scaling

Is there an alternative to DPI scaling (I am open to third-party programs) which makes items look less pixelated at high DPI settings? I have a 15.9" laptop screen with a 1920x1080 screen. I'd like ...
3
votes
1answer
2k views

Add or remove single pixels from selection in Photoshop?

Sometimes in Photoshop I'm working with images at very close-up levels, such as small animated GIFs and emoticons. Often I'm zoomed in all the way, working at pixel level. If I've got a selection ...
1
vote
1answer
2k views

Average PPI used?

Throughout all laptops and desktops what is the standard pixels per inch (PPI) used? Does it vary throughout screen ratio? I found mine to be 100ppi, the real world measurement was 4 pixels more.
3
votes
1answer
528 views

Is there a way to eyedropper colors WITH transparency, and paint with that color?

Here's my use-case: I'm doing a pixel art sketch, and one of my layers involves glass with partial transparency. I'd like to be able to: Eyedropper the transparent color and have it automatically ...
0
votes
2answers
444 views

Color detector program

I used to use the program Color Detector. Simply run the program, point the mouse cursor anywhere on the screen, and the color detector window will display the RGB values, HTML hex code, and ...
1
vote
3answers
38k views

How many pixels is the A3 format?

The A3 format gives the dimension in centimeters, but if I draw an image programmatically I may know just the pixels, for example I have an image of 800x1200 and so on ... So the question is: I must ...
5
votes
2answers
10k views

How to prevent Chrome from blurring small images when zoomed in?

When I'm trying to view pixel art up close, chrome starts blurring the image. I want to make it so that even when the image is zoomed in, I can still see the pixels in crisp detail, not a blurred one. ...
0
votes
1answer
18 views

Notebook displaying marks of text from programs opened for too long?

Using my Macbook Pro Retina, when I have the same program somewhere on the screen for too long and close it, I can see a mark of it's letters on that place of the screen. Is that common or a ...
1
vote
1answer
1k views

Get pixel coordinates of cursor in PDF?

Are there any PDF viewers (Windows, OS X, or Ubuntu) that enable you to see the page-relative pixel coordinates (x,y) of your cursor? I know Photoshop can do this, but I'm looking for something ...
9
votes
2answers
100k views

What is standard A4 paper size in pixels for a given resolution?

Is there a standard size of A4 paper in pixels? Dimensions of A4 paper are 210mm × 297mm or 8.27in × 11.69in. For 600dpi resolution, I calculate the paper size in pixels like below: In imperial ...
0
votes
3answers
6k views

Bright 2x2 pixel spot on laptop display

I have a Samsung NP550P5C laptop with a problem on the display I've never seen before: it has a 2x2 pixel area that is considerably brighter than the rest of the screen area. Here's a closeup: The ...
1
vote
1answer
1k views

Red dot appearing and disappearing on monitor

I just bought a full HD Acer LED monitor (21.5'') and noticed that there was a red dot on the right hand side - sort of like a dead pixel. After a few days, this dot disappeared. A few days later, ...
2
votes
1answer
237 views

Displaying random pixels on LCD

Will it damage my LCD screen if I display a stream of continuously changing randomly colored pixels, at the monitor's refresh rate, for a long time? As in, will it damage it any more than displaying a ...
0
votes
0answers
582 views

Desktop icons and fullscreen flash apps pixelated instead of blurred

On my other devices, and as far as I can remember, at some point on this laptop, stretched graphics such as desktop icons, and fullscreen flash apps (such as Youtube, Vimeo) appear pixelated and ...
1
vote
1answer
5k views

How to know pixel values precisely?

How to know one single pixel RGB and transparency values precisely in Photoshop? Using eyedropper tools I seem not to be able to do that, i.e. it shows RGB=(0,0,0) on partially transparent pixels ...
8
votes
8answers
43k views

Green flickering pixels that move with black images

Strange question... Occasionally, on my LCD screen, pixels that should be black flicker rapidly and constantly between black and green, about 4 flickers a second. The crazy part is, unlike dead/stuck ...
2
votes
1answer
2k views

Windows command line - get pdf page width and height in pixels?

I need a piece of software (a freeware preferably) that will display what is the pixel width / height of a pdf page. If there are many pages with different dimensions, I'd be enough to just get the ...
5
votes
1answer
2k views

Why are red&green pixels moving around on my screen?

The top left corner of my LCD monitor is acting up. The pixels are colored red and green. Not completely on like a stuck pixel, but variably faded. It's a seemingly random distribution, centered on ...
1
vote
2answers
221 views

Monitors with different pixel sizes

I have several monitors with different pixel sizes (that is, size of individual pixels; not resolution). This means that when I put them next to each other and move the mouse between them, it's not ...