How to recognize that PNG is a monochrome image

[rishabh]

Hello ,
I just wanted to know how to find out if PNG is monochrome or not? and how to convert any png to 1bit monochrome png.
Thanks

[snibgo]

Code: Select all

identify %[colorspace] in.png

See documentation http://www.imagemagick.org/script/escape.php

There are many different methods to make an image into black and white only. One method is:

Code: Select all

convert in.png -colorspace Gray -threshold 50% out.png

[fmw42]

Please always provide your IM version and platform, since syntax may differ.

[rishabh]

Hello . Thank you for response I am using IM 6.6.6 version on wndows platform

[fmw42]

6.6.6 is very old (over 250 versions old). Don't you think it is time to upgrade?