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Sue Chastain

Bicubic Smoother and Bicubic Sharper

By January 9, 2006

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Photoshop CS and Photoshop Elements 3 introduced two new interpolation methods for better results when resizing images -- Bicubic Smoother and Bicubic Sharper. Do you know when to use which?
Use Better Interpolation When Resampling in Photoshop and Photoshop Elements
Comments
October 21, 2006 at 2:39 am
(1) David Wen says:

Layers Magazine says not to use bicubic smoother.

layer magazine

October 21, 2006 at 11:41 am
(2) Sue Chastain says:

That’s not how I interpret that article at all. First it explains how to change print size without resampling. Great. I have a similar article. Then it goes on to tell you how to create extreme enlargements using Bicubic Smoother. No where does it say not to use it. The author advises not using it in more than 5-10% increments at a time. Personally, I don’t feel that is necessary. But feel free to experiment with it yourself and see what works best for you. There’s always the undo command!

December 29, 2011 at 10:10 pm
(3) Jay Coffelt says:

I have a question. When I open a photograph that I have taken with my Canon 20D originally in the RAW format but then saved as a TIFF and go to the Image Size Dialog Box in Photoshop, the file size is 23.4 megabytes with a Width of 2336 and a Height of 3504 pixels (if Portrait…simply reverse those numbers for Landscape). The Document Size has a Width of 9.733 inches, a Height of 14.6 inches and a resolution of 240 pixels per inch. Well, I like to convert all of my images down to 1 inch by 1.5 inches…I just do…a quirk of mine or my obsessive compulsive disorder. So, in the Document Size section of the Image Size Dialog Box, I change the width to 1 inch, the height to 1.5 inches (again, those are for a portrait-oriented shot — just flip them for a landscape-oriented shot), and I change the resolution to 2336 pixels per inch — that keeps the file size at 23.4 megabytes.

My question is: what do I do in regard to the Resample Image section of the Image Size Dialog Box? Do I “check” the box or “uncheck” the box? And if I “check” the box, then which resampling method do I choose from the drop-down box (Nearest Neighbor, Bilinear, Bicubic, Bicubic Smoother or Bicubic Sharper)?!?!

Thank you in advance,
Jay Coffelt

January 2, 2012 at 5:49 pm
(4) Sue Chastain says:

@Jay: If you don’t want to throw away pixels–and I doubt that you do–do NOT check the resample box. Here is an explanation of resampling so you can understand it: http://graphicssoft.about.com/library/glossary/bldefresample.htm

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