3 Replies Latest reply on Apr 2, 2013 6:38 PM by Noel Carboni

    Smoothing pixels

    ebenpublishing Level 1

      Hi, I am doing a cover for one book and the customer definitely wants one picture with very low quality on it. When it was printed as an attempt, the picture was very pixelized (one could see the pixels in a way they are - rectangle-like...). Is there any tool in Ps how to smooth tthem? What could be done to achieve as best printing quality as possible?


        • 1. Re: Smoothing pixels
          c.pfaffenbichler Level 9

          First, I think, you should simply try to upsample the image in Photoshop so that it has the required effective resolution and go from there.

          And if necessary investigate dedicated upsampling software.

          • 2. Re: Smoothing pixels
            Brett N Adobe Employee

            You could always use a blur filter or the blur tool.

            • 3. Re: Smoothing pixels
              Noel Carboni Level 8

              C.Pfaffenbichler mentioned upsampling but didn't say how:  Image - Image Size, then select Bicubic or Bicubic Smoother as the upsampling method.


              However, if the image has already been upsized using something like the Nearest Neighbor resampling algorithm, to where each square block of solid color in the image is really a block of multiple actual pixels, all the same color, then Brett's suggestion may be a good approach.


              Or you could downsample it so that each block of color really DOES occupy just one pixel, then use either the aforementioned upsampling or one of the fancier upsampling tools.  An example using OnOne Software's Perfect Resize 7.5 (which has a free trial period).