Correcting Skew Effect

 

Objective

Following this tutorial, you will learn how to use EasyImage to correct skew effect in an image.

You'll need first to load an image (step 1), create a destination image (step 2), and then set a correction angle to perform the correction (step 3).

    

Source image, with a skew effect (left) and corrected image (right)

Step 1: Loading the source image

1.

From the main menu, click EasyImage, then Scale and Rotate.

2.

Click the Open icon of the Source Image area, and load the image file EasyImage\CCD.tif.

3.

Keep the default variable name for the new image object, and click OK.

Step 2: Creating a destination image

1.

Click the New icon of the Destination Image area.

2.

Enter '768' and '576' as image width and height, and click OK to accept the default name.

Step 3: Setting the correction angle

1.

Select the Rotate option, and enter -16.17 in the Angle (Deg) field. (To measure this rotation angle, refer to Measuring the rotation angle of an object.)

2.

From the Interpolation bits drop-down list, select 8 bits to get a better result.

3.

Click Execute to perform the operation.