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Questions tagged [image-quality]

Questions about the amount of detail and information contained in an image.

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27 votes
9 answers
118k views

Facebook: Ways to preserve image quality of uploaded images?

After uploading an image, Facebook converts it to a new image. Their conversion process introduces artifacts and mottling to the magenta-ish parts of the image. Original image: Facebook's ...
Pilgrim's user avatar
  • 387
24 votes
8 answers
6k views

What is the best way to convince clients to send original image files instead of screenshots of images?

Some clients send screenshots of images instead of the image file. Is there a reliable way to communicate that it would be easier for them, and for us, if they simply sent the image file instead? I ...
McKlatch's user avatar
  • 335
23 votes
1 answer
18k views

What algorithm do the NoHalo and LoHalo resize methods use in GIMP?

The GIMP resize tool used to have only None, Linear, Cubic/Bicubic, and Lanczos, which are reasonably well documented algorithms that one can do research on, if one is so inclined. I can't find any ...
Matt's user avatar
  • 368
21 votes
4 answers
30k views

How do I make an image look pixelated, like old school arcade graphics?

I want to take some stock art (can be of any dimension) and make it look pixelated, kind of like old Mario Brothers video games circa the 80's. Part of the image manipulation would require scaling ...
milesmeow's user avatar
  • 323
19 votes
2 answers
26k views

How do you export the original image that was inserted in a Sketch document?

I've inserted a few JPEG images for backgrounds into a Sketch document, and now I want to get the full-resolution images out to use on the web. I don't want to export the JPEG into another JPEG, ...
elliottregan's user avatar
16 votes
2 answers
2k views

Should a designer flatten/restrict images when sending to another designer?

Scenario..... Client sends Photo A to you for use in a design. The photo is a portrait with a background. In the course of work you remove the background and color-correct the photo for your use. ...
Scott's user avatar
  • 210k
15 votes
3 answers
5k views

"Grand grimoire effect" in photoshop

I'm helping out in creating an ARG game. For this game I'll need to create pictures of ancient pentagrams and illustrations that look like they are a result of a very bad scan of medieval hand drawn ...
vinczemarton's user avatar
11 votes
4 answers
280k views

Reduce file size without losing quality

I would like to save files in Photoshop but keep them as small as possible. I use Save for Web (and Devices) and save as a JPEG. Here are the settings I used: I really do not want to lower the ...
L84's user avatar
  • 596
11 votes
5 answers
73k views

Email signature hell--How to include a logo image and have it stay sharp?

I found a couple useful threads on this forum with respect to the issues posed by (displaying) images in email signatures-- here, for example-- and I've searched all over the web, but still have not ...
nickpish's user avatar
  • 211
10 votes
9 answers
17k views

Techniques to dramatically scale an image

I have been given an impossible task: Take a picture image (jpg) at 1422 x 1067 px with 100 dpi and scale it to 86400 x 29376 px (that's equivalent to 34ft x 100ft or 30.5 meters x 10.36 meters) ...
Hanna's user avatar
  • 10.9k
9 votes
5 answers
4k views

How can I convert a QR code from JPG to SVG with perfect clean squares?

I have a QR code in jpg format with low quality and I need to convert it to SVG with perfect squares. I tried Trace Bitmap with Inkscape using Edge detection and all the other options, but I can't ...
Harry McKenzie's user avatar
9 votes
4 answers
7k views

How to determine what quality a JPG was saved as?

When saving JPG images with Pixelmator or Photoshop, I select a quality from the scale 1–100 that gives optimum file-size. Later on, I sometimes take these images and crop them a little more (not ...
Baumr's user avatar
  • 436
9 votes
5 answers
212k views

How can I increase the size of a .jpeg without losing quality?

Is it possible to make a .jpeg photo larger without losing "quality"? I have a photo that is 450px x 750px and would like to make it 3 times bigger for web not print? I've been told that Illustrator ...
Abdo El-Madhoun's user avatar
9 votes
3 answers
2k views

How do I ensure a colour is flat (and not dithered) when exporting it from Flash?

What settings/methods are best for creating an animated gif with sharp image quality? Here's what I'm working with: http://demo.jessewhite.me/envelope/index.html This graphic is for a high-end ...
user2215732's user avatar
8 votes
4 answers
330k views

How can I reduce the file size of a JPEG keeping the same image width and height?

I have a 700Kb JPEG file (white cardboard texture) that I'm using as a background on a website. A file this large takes too long to load for snappy page hits. I don't need the full resolution, a ...
user22476's user avatar
8 votes
3 answers
17k views

Why does Photoshop want to save JPEG as quality '10' out of 12?

I'm currently editing a bunch of images (JPEGs) and Photoshop keeps wanting to save them as 10/12 instead of 12/12. Why does it constantly want to save it as 10/12 instead of 12/12? Is there an ...
Sander Schaeffer's user avatar
8 votes
3 answers
6k views

How to reduce enormous GIMP (XCF) file size for simple photo correction

Thank you in advance for your help. I am a fairly new GIMP user with no Photoshop experience, so bear with me. A batch of 600 images was ruined by something inside the camera that caused a smudge to ...
HappyRoy's user avatar
6 votes
2 answers
6k views

SVG looking bad in small resolution?

I've cretaed a SVG image trying to solve the quality problem when re-sizing the element or scaling it through CSS. To my surprise, my SVG image looks even worse than the reduced size of the GIF or ...
Alvaro's user avatar
  • 167
6 votes
1 answer
3k views

Is there a standard file size recommendation to optimize web images?

I remember, during college (2008), my web design professor made a point to keep all images' file size at/below 40K (didn't matter what the dimensions). I have made an effort to do so ever since, ...
heycortney's user avatar
6 votes
4 answers
17k views

How to reduce the file size of an image while keeping the same dimensions

My goal is to create a Kindle Cover and upload it following Amazon recommendations. The Cover Should Be: MAXIMUM: Width:1563px; Height:2500px; JPEG up to 127KB MINIMUM: Width:625px; ...
Ronaldo's user avatar
  • 63
5 votes
3 answers
4k views

How to make PNG-quality animations in GIF format?

I've noticed more and more sites using animated GIFs that have PNG quality. You'd think they're the latter if you didn't check the image info. The lines are crisp, the colors look great, there's none ...
CodeCharming's user avatar
5 votes
1 answer
2k views

How to detect whether webp image is lossless or lossy?

When I see a JPG file, I know for sure this file is lossy. When I see a PNG file, I know for sure it is lossless. But WebP is a different thing, it supports both lossless and lossy "modes", ...
john c. j.'s user avatar
5 votes
1 answer
2k views

Why is my logo looking weird in PDF when it looks fine InDesign?

I have a brochure created in InDesign, the logo I am using on it is an AI vector. It looks normal in InDesign, but when I export to PDF it looks distorted. At 400% in PDF, it looks normal but when I ...
Stephanie Hayward Johns's user avatar
5 votes
2 answers
53k views

Quality of .gif output from Photoshop

I'm trying to output a .gif from Photoshop (CS6) and have run into some difficulty with the quality it is producing. Ideally, each image should resemble these stills - 1, 2 and 3 which are crisp and ...
user1752759's user avatar
5 votes
4 answers
79k views

Best image dimensions for downloadable wallpaper, for PC, HD, mobile and tablet?

Let's say I wanna make a website that would allow a user to download a wallpaper in sizes for PC, HD, mobile and tablet. What are the top used / best image dimensions I should host?
Glorious Kale's user avatar
5 votes
2 answers
373 views

offline complete satellite map

I'm doing computer art with images mixing low zoom areas with high zoom areas automatically. So far, the only images I can use reliably are vector graphics images, since they support infinite zoom ...
enigmaticPhysicist's user avatar
4 votes
1 answer
368 views

Doing website for a client but logo is not good quality

I'm doing a website for a client and they provided me the logos but, the logos all have a white background which I've tried to remove but I cannot. I use Canva to adjust the logos. The logos are ...
freely's user avatar
  • 41
4 votes
2 answers
22k views

Reduce image size in photoshop without compromising text readability

I found a similar thread that gave some great pointers, but still doesn't solve my issue. My boss asked me to create a corporate presentation, and I had the unfortunate idea of doing it all in ...
Bruder's user avatar
  • 143
4 votes
4 answers
21k views

Will changing image resolution from 300 to 72 without resampling reduce the quality?

This is a rather stupid question so I apologise in advance but I just wanted to be 100% sure! I have a set of photos at 300 ppi that are 800 pixels by 800 pixels and need to convert them in Photoshop ...
deshg's user avatar
  • 143
4 votes
2 answers
7k views

Google Play - 'Feature Graphic' Design

I recently got my application in the google play store, but I have an issue with how the 'Feature Graphic' is being displayed. Here is the original (@ 72 DPI (Screen RES) - Saved for Web - PNG8): ...
Evan Bashir's user avatar
4 votes
1 answer
2k views

Background images get distorted or random lines appear

The question might not seem to be clear but i could not get a better name for the behavior of the background that happens. There is a background image that i am setting to my layout, there are various ...
DSS's user avatar
  • 143
4 votes
1 answer
6k views

Tools or methods for optimizing favicon appearance?

I often must create a favicon for a fairly complex image, that when it gets down to 16x16, looks weird or blurry. I have been trying with one image, reduced with bicubic-sharp in Photoshop and ...
Damon's user avatar
  • 3,143
4 votes
1 answer
200 views

Is there any negative adverse effect to optimizing images for retina screens, if the images aren't exactly double size?

For example: Say I have an image that is going to be displayed at 1000px wide. I want to optimize my site for retina displays, but the largest resolution image I have to put here is only 1900pixel ...
Eric's user avatar
  • 1,243
4 votes
2 answers
6k views

How to resize images for best view in Word and PDF document?

Note: I've asked this question in Super User but I couldn't get an answer. Later on, I noticed this community. I have prepared some vectoral and python/matplotlib high resolution images. As you can ...
esilik's user avatar
  • 143
4 votes
1 answer
728 views

How does 6 colour printing affect a CMYK image?

I'm going to use the Epson Artisan 1430 inkjet printer, which uses 6 inks, for my project to do sublimation. Will this have any effect on the colour or resolution of my image?
rolo's user avatar
  • 41
3 votes
4 answers
5k views

Photoshop: high pass filter or sharpening filter?

I was wondering, what is the difference between the high-pass filter and the unsharpen mask one? I am used to use the first to improve the quality of the image (to make it less dreamy and more ...
Rhei's user avatar
  • 257
3 votes
4 answers
4k views

How many times can I open and resave a jpeg until its quality noticeably drops?

This isn't a problem I'm currently facing, rather just a curious thought. I know that every time you open and resave a jpeg it will lose information, How many time could you do this until there is a ...
SaturnsEye's user avatar
  • 3,688
3 votes
4 answers
21k views

How can we talk about the “resolution” of a JPEG file?

A JPEG is characterised with three parameters: width (pixel), height (pixel) and bit depth (bits per pixel). And resolution is a characteristic for output devices, e.g., monitors or printers. Why? ...
Ivan Gerasimenko's user avatar
3 votes
2 answers
3k views

Why is image size becoming larger after cropping it in PS?

I am using photoshop to crop Youtube preview images like this one, which is a .jpg file, the url being "http://img.youtube.com/vi/g-LvhmaHEWA/0.jpg" Originally it is 480*360 and about 25k on disk, ...
shenkwen's user avatar
  • 173
3 votes
1 answer
771 views

Is (an on screen) PDF a good indicator as to how it will look when printed?

I have to design something for an exhibition / trade show. As it's such a large print (230in x 100in) I made my file at half the size 115in x 50in. So when I save the pdf and zoom in to 200% because ...
David's user avatar
  • 33
3 votes
1 answer
2k views

How do I determine what the image file format and resolution should be when scanning?

I was recently asked for help with digitizing a large set of photographs - tens of thousands of the things, that need to be digitized so they can be sent to book publishers and possibly other types of ...
Jack M's user avatar
  • 164
3 votes
3 answers
429 views

Are JPG and WEBP Appropriate Image formats for Offset Printing in 2023?

I teach an introductory graphic design course (PS, Illustrator, InDesign) for Media Arts students. I try hard to re-evaluate the material and grading criteria regularly so that I'm focusing on aspects ...
grovberg's user avatar
  • 229
3 votes
2 answers
2k views

Best way to make a lighter version of an texture without losing quality?

Levels, curves, brighten/contrast, exposure, something else? I tried levels and brightness/contrast, but they don't appear to be working well and make it too contrasting and different from the ...
Twoopah's user avatar
  • 33
3 votes
3 answers
7k views

MacBook retina Photoshop save for web

I am, like so many other graphic designers, very excited about the new MacBook 15" with retina display. But there is one thing that I really am concerned about. With 4 times the pixels as on ordinary ...
Stefan Hans Schonert's user avatar
3 votes
1 answer
6k views

Gimp: how to remove background noise/artifacts and enhance handwritten text

I have a lots of scanned handwritten lecture notes (PDFormat) and I want to improve their readability (I have uploaded an example). In particular I'd like to remove the "squares" on the back. I would ...
user119319's user avatar
3 votes
2 answers
2k views

Image fuzzy in browser, sharp in Photoshop (with NO resizing), why?

I have a PNG file that looks fuzzy when I view it in any browser. However, opening the very same file in Photoshop, making no changes, it looks perfectly sharp. Why does this PNG look different when ...
enga's user avatar
  • 161
3 votes
1 answer
7k views

Sketch - Export layers and keep the layer size?

So, I have my layers and when I go to File > Add Slices For Selection to slice the images and then export. They are coming out with the wrong size, if you take the star, it has a width of 40px on ...
Chaos67731's user avatar
3 votes
1 answer
6k views

Will my image be of ok quality when printed on a blanket [duplicate]

My original image taken on my mothers new canon is 4650 x 5829. I am looking to print this image on a fleece blanket 60x80 in size, to give to my father but when i input it into the computer it tells ...
jeff's user avatar
  • 33
3 votes
2 answers
413 views

Measuring minimum resolution in Photoshop/GIMP

I am following Apple's iTunes connect guide (as of today 13th November 2013) for designing an image. At page 239 of their guide I am confused on the following: Background artwork must be at least ...
mm24's user avatar
  • 265
2 votes
3 answers
2k views

InDesign displays low quality linked AI file

I'm creating a business card in InDesign. The best version of the company logo I have is an AI file which looks pixelated when placed in InDesign. I've tried exporting the AI file into different ...
Patrick's user avatar
  • 21

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