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How to use ImageEnProc.Threshold

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T O P I C R E V I E W
AndyColmes	Posted - Feb 04 2014 : 12:02:34 I am trying to use ImageEnProc.Threshold to mimic Photoshop's Threshold image adjustment where darker shades become black and lighter into white. I would appreciate if someone can provide some guidance on how to use ImageEnProc.Threshold for this purpose. Thanks.
5 L A T E S T R E P L I E S (Newest First)
xequte	Posted - Feb 08 2014 : 12:28:53 Nice one Nigel Xequte Software www.xequte.com nigel@xequte.com
w2m	Posted - Feb 06 2014 : 21:59:06 I made a demo for the Threshold procedure which you may download here: http://www.imageen.com/ieforum/topic.asp?whichpage=1&TOPIC_ID=1446#5177 William Miller Adirondack Software & Graphics Email: w2m@frontiernet.net EBook: http://www.imageen.com/ebook/ Apprehend: http://www.frontiernet.net/~w2m/index.html
xequte	Posted - Feb 06 2014 : 17:06:47 Hi William I've just added this to the documentation: // Make values less than R/G/B of 64 black ImageEn.Proc.Threshold(CreateRGB(64, 64, 64), CreateRGB(255, 255, 255), CreateRGB(0, 0, 0), CreateRGB(255, 255, 255)); // Make values greater than R/G/B of 192 white ImageEn.Proc.Threshold(CreateRGB(0, 0, 0), CreateRGB(192, 192, 192), CreateRGB(0, 0, 0), CreateRGB(255, 255, 255)); // Make values with a red value greater than 192 pure red ImageEn.Proc.Threshold(CreateRGB(0, 0, 0), CreateRGB(192,0, 0), CreateRGB(0, 0, 0), CreateRGB(255, 0, 0)); Nigel Xequte Software www.xequte.com nigel@xequte.com
w2m	Posted - Feb 05 2014 : 13:11:19 Nigel, I think a small demo is required to show how to use Threshold and Threshold2 or at least some Example code for which there is none at all. William Miller Adirondack Software & Graphics Email: w2m@frontiernet.net EBook: http://www.imageen.com/ebook/ Apprehend: http://www.frontiernet.net/~w2m/index.html
xequte	Posted - Feb 05 2014 : 02:26:20 Hi I recommend you see the threshold code in preview.pas that is used by the Proc.DoPreviews method: http://www.imageen.com/help/TImageEnProc.DoPreviews.html Nigel Xequte Software www.xequte.com nigel@xequte.com