Hi Umesha, See the imageMagic program and library. It has a commandline interface.
Pranav -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Umesha Economics Sent: Monday, February 06, 2012 5:53 PM To: [email protected] Subject: Re: [AI] converting colour and grayscale images into black and white thank you. the program converts the images into single bit. but it has neither variable threshold, nor batch processing. any other program or idea is welcomed. Umesha ----- Original Message ----- From: "Pranav Lal" <[email protected]> To: <[email protected]> Sent: Friday, 03 February, 2012 7:52 PM Subject: Re: [AI] converting colour and grayscale images into black and white > Hi, > > Try irfan view. It may do some of what you want. > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Umesha > Economics > Sent: Thursday, February 02, 2012 10:58 PM > To: Access India > Subject: [AI] converting colour and grayscale images into black and white > > Dear friends, > few months ago, I was discussing about scanning our textbooks using a > digital camera. as a part of that experiment, I have one problem for which > I > seek your advice. it's as follows: > > the kesi virtual printer does not properly convert colour and grayscale > images into monochrome images while printing. so I need a program to > convert > colour and grayscale images taken from a camera into single-bit monochrome > (black and white) images before feeding them into kesi printer. if any of > you know of any such program, kindly let me know. additionally it is > desirable to have the following features > 1. variable threshold: the threshold value for converting gray pixels into > either black or white should be able to be varied by the user. > 2. batch processing: it should be able to convert multiple images stored > in > a folder all at once. > > thanks > Umesha > > Search for old postings at: > http://www.mail-archive.com/[email protected]/ > > To unsubscribe send a message to > [email protected] > with the subject unsubscribe. > > To change your subscription to digest mode or make any other changes, > please > visit the list home page at > http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in > > > > Search for old postings at: > http://www.mail-archive.com/[email protected]/ > > To unsubscribe send a message to > [email protected] > with the subject unsubscribe. > > To change your subscription to digest mode or make any other changes, > please visit the list home page at > http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in > Search for old postings at: http://www.mail-archive.com/[email protected]/ To unsubscribe send a message to [email protected] with the subject unsubscribe. To change your subscription to digest mode or make any other changes, please visit the list home page at http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in Search for old postings at: http://www.mail-archive.com/[email protected]/ To unsubscribe send a message to [email protected] with the subject unsubscribe. To change your subscription to digest mode or make any other changes, please visit the list home page at http://accessindia.org.in/mailman/listinfo/accessindia_accessindia.org.in
