Tool used for this,is Adobe Photoshop.
Initial picture/image being used :
*click the image to zoom in.

- Step 1 : adjusting the tilt of the image according to the desirability.Also used for selecting the required portion of image i.e. cropping.
*Notice the area as the border around the image ,as its removed in the next image.

- Step 2: Image Rectification Starts now.Firstly we need to clear the Localized noise.
now set the "radius = 1 " and "threshold = 0 ",and preview the image portion.click "ok" to apply.
you won't notice a great difference but its a necessary step.comparative image would be somewhat like this:

- Step 3:Go to "Filters -> blur -> gaussian blur "
image would be something like this:

- Step 4: Go to "Filters -> sharpen -> unsharp mask "
keep " radius between 2 to 4 pixels "
keep "threshold =0 "
image is ready for final touch,it should be something like this :

- Step 5:go to "image -> adjustments -> auto contrast "

The Photoshop version used by me is 7.0 and CS2 is said be a better version,so update will come soon,may be with a better example.
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