What is resolution? How to get maximum detail in images

What is resolution? How to get maximum detail in images

How to increase or decrease image resolution

 

How to increase or decrease image resolution: Step 1

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.

 

How to increase or decrease image resolution: Step 2

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.

 

How to increase or decrease image resolution: Step 3

03 Measurements
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.

 

How to increase or decrease image resolution: Step 4

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.

 

How to increase or decrease image resolution: Step 5

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.

 

How to increase or decrease image resolution: Step 6

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

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