What is resolution? How to get maximum detail in images
How to increase or decrease image resolution
01 Go to Image Size
The best time to resize a photograph is when you’ve finished editing it, but before you’ve sharpened it. At this stage, go to Image> Image Size.
02 Tick the right boxes
In order to resize your image without stretching or squashing it, make sure that the ‘Constrain Proportions’ and ‘Resample Image’ boxes are both ticked.
To increase/decrease size, type new numbers in one of the first four boxes. Here the width of the image is increased from 3,000-6,000 pixels; the other figures will adjust automatically.
04 Adjust to paper size
For a big blow-up, using the Document Size boxes can be useful. To create a 30×20-inch print, the Height is adjusted to 20 inches with a Resolution of 300 pixels/inch.
05 Web posting
For using images on the web on in email, you often need to decrease the file size. Changing the Pixel Dimensions enables you do this with ease. Here the Width is adjusted to 1,000 pixels.
06 Save for Web
For downsizing images for screen use, Photoshop’s Save for Web option can be useful because it enables you to have more control over the final result and previews the effect.
PAGE 1: Common questions about image resolution
PAGE 2: Photo science – why small apertures reduce image resolution
PAGE 3: How to increase or decrease image resolution
What is White Balance: common problems and how to solve them
What is ISO: when to increase sensitivity, types of noise and more
What is color temperature: free photography cheat sheet
What is Dynamic Range: what you need to know about capturing all the tones in a scene
on Monday, October 22nd, 2012 at 4:30 pm under Photography for Beginners.
Tags: camera tips, DSLR tips, photography cheat sheet