Images often need to be resized, and the Transform option may seem like the best tool for this. However, images can easily be ruined due to stretching. The Transform option isn’t the best option when working with images because it doesn’t maintain any image resolution and it doesn’t constrain proportions.
It is quite easy to resize images using the “Image Size” tool that is located under the image menu.
Open the photo you wish to resize.
Click on the Image menu and a menu will drop down that includes the “Image Size” option.
Click on “Image Size” and an option box will appear on the screen.
Before making any changes to the photo make sure the “constrain proportions” and “scale styles” are selected. This will ensure that the image is not distorted. Also make sure that the resolution stays the same while you are typing in numbers.
The photo was brought in at 503×604 pixels and it needs to be a width of 300.Change the width number to 300. If the “constrain proportions” and “scale styles” options are selected, Adobe Photoshop will mathematically change the height number to a correct proportion. In this case, 360 is the number that was given.
The image will resize with the proportions and resolution intact.
This tool is one of the easiest to use in Photoshop CS3 and it helps your images look clear and keep their desired appearance.
If you need to increase the image size, you’ll want to make sure the resolution doesn’t diminish. You can easily increase the image size by typing in the resolution that you desire and Photoshop will match the resolution with the size that will work. Never increase the size more than once because the pixels might get blurred and create “noise” within the image.
The re-sample option below “constrain proportions” and “scale styles” allows you to specify how you want your image to be resized. These options include “Nearest Neighbor,” “Bilinear,” “Bicubic,” “Bicubic Smoother,” and “Bicubic Sharper.” Here’s an idea of what these options do and when to use them:
“Nearest Neighbor”: Produces a smaller image file but also a lower image quality, used mainly for illustrations. Resizes by replicating pixels.
“Bilinear”: This option produces medium quality results and resizes by adding pixels that match the surrounding pixels’ colors.
“Bicubic”: This option produces a higher quality result because it uses precise calculations to determine what values are being used within the image. Because this is more precise and higher quality, it takes a little bit more time.“Bicubic Smoother”: This option gives the smoothest results when enlarging images.“Bicubic Sharper”: This option is best used when you’re reducing your image and you want to maintain detail. It re-samples your image and at the same time sharpens your image.