How to convert an image from color to black and white (grayscale)?


Answer 1:
Using IrfanView (it’s freeware). You can download it here:

Launch IrfanView.
Open the image (File → Open).
Convert the image to grayscale (Image → Convert to Grayscale).

The above instructions were successfully tested with IrfanView 32bit (version 4.51).

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