Resizing the Right Way?

I don’t seem to know how to resize the right way. I often end up with jaggies and other artefacts around details. Take a look at this pic for what I’m talking about. Note the artefacts around the text.

So what’s the secret here? A magic $20 plugin? Selective blurring and sharpening at various stages. Not that long ago I started downsizing in steps using a PS action. It doesn’t seem to make that much difference. Kate’s old glasses seemed to present a particular challenge in this arena nearly always rendering with some jaggies at one particularly part of the curve. See below.

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I know the root of the problem has something to do with having sufficient pixels to render curves or lines of particular angles. But am I approaching that threshold that often? And if I am, what am I doing differently from all the other photographers that don’t seem to have this problem as often? This isn’t the end of the world, but it’s kind of annoying. I often find myself backing off the sharpening to reduce the apparent jaggies. I’m asking too much?

5 Comments

  1. Anthony says:

    Are you sharpening, resizing, and then sharpening?

  2. matt says:

    Yeah. I sharpen the full size image at 100-150%, Radius 1, Threshold 1. Resize. Then sharpen at 75%, Radisu 5, Threshold 1.

  3. Anthony says:

    Bicubic sharper for the second resize or regular bicubic? Email me a full res copy of this image and that one in the beginning of the post, I’m curious about something…

  4. StephaneB says:

    For downsizing, I find bilinear to be the best. Sharpening before is not a good idea, it makes the task harder. Bicubic sharper was designed for downsizing as well but I find it to hard most of the times. Bicubic smoother could be used but will make it softer than bilinear. Bicubic smoother was designed to enlarge.

  5. matt says:

    Stephane, thanks for the tip. I’ll give bilinear a try, and I’ll rethink my sharpening routine.

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