DIY Digital Caliper Micrometer Comparator

Step 8Straighten the Image

Straighten the Image
Use the rotation tool in your graphics program to straighten out the image.

Most of the time you will find you need to rotate the image 2 or 3 degrees to make the part look straight.

For IrfanView, press F12 to bring up the paint tools window. Choose the straighten tool, trace a line on the part which should be vertical. This rotates the image.

In the GIMP, drag a guideline or turn on the grid. Now use the Rotation tool to free rotate the image.


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