Steve on Image Processing

May 18th, 2009

Overview window preference in R2009a

A few years ago we introduced the Image Tool for image viewing, navigation, pixel-value display, cropping, etc. Here's a screen shot:

Image Tool screenshot

The window on the left is called the "Overview Window." It helps you see where you are when you are zooming in on a large image.

Until the latest toolbox release, R2009a, the Overview Window always appeared whenever you launched the Image Tool. Quite a few customers told us they didn't like this behavior.

If you select the File / Preferences menu in R2009a, you'll see a new "Image Processing" choice. This new preferences panel lets you choose whether the Overview Window always appears when the Image Tool is launched. You can see the Overview Window checkbox circled below.

Image Processing preferences panel screenshot

By default, the checkbox is off, meaning that the Overview Window will not display. To make the Overview Window appear, click on its icon (the first one on the left), or select the Tools / Overview menu.

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Steve Eddins manages the Image & Geospatial development team at The MathWorks and coauthored Digital Image Processing Using MATLAB. He writes here about image processing concepts, algorithm implementations, and MATLAB.

  • Steve: Kezia—Try imrotate.
  • kezia: steve, how to perform rotation of structuring element by 15 degrees. kindly answer my question. thank u kezia...
  • Steve: Tasha—I only accept comments that are relevant to the particular blog post or are questions or comments...
  • Tasha: Steve,I send you a comment here but still didn’t get any reply yet.I did not see my comment posted here...
  • Steve: Carsten—Thanks for your input.
  • Carsten: Another vote for either imtranslate.m, or at least a blurb in the imtransform help why pure translation...
  • Loren Shure: If you look towards the end of the fftfilt program, you will see that there’s a check to see if...
  • Steve: Sonja—My imwritesize submission on the MATLAB Central File Exchange might be helpful. It was posted...
  • Steve: Grant—Sorry, but it won’t be for R2010a. That development deadline has already passed.
  • Sonja: My publisher is wanting images for a new book to be 300 dpi. Only 5 of the 19 images are 300, the rest are...

These postings are the author's and don't necessarily represent the opinions of The MathWorks.