Conversion of 24 bit RGB image to Grey Scale?
108670
Microsoft Photo Editor will do that
1161328
Great chart can be found here:\n\nhttp://en.wikipedia.org/wiki/Comparison_of_graphics_file_formats
414283
Threre are various programs that can do this. You can try Blaze MediaConvert. It can convert batches of files at once
1032393
simple!\nuse black and white mode for scanning
130614
http://www.nch.com.au/switch/index_b.html?ref=google&ref2=c24mp3converter&ref3=pb&gclid=CJPNl4munYMCFUU8Igod7gdPLQ
698431
The simplest, but least effective, way to do this is to convert the image to grayscale.\n\nFor a more flexible option, you can add a hue/saturation adjustment layer. See this page for a walk through:\n\nhttp://tricks.onigo.net/guides/2005/08/convert-to-black-and-white-using.html
909785
A little bit ambiguous...You want to write a "color picker"? Then API is your only way...:D... Beware also at the color "depth" conversion...
596261
WinXP?\n\nDesktop-->Appearance--> "try using silver here" but I know there is a way to customize the color scheme around here\n\nalso go to\nControl Panel-->Display-->Settings-->Advanced Button-->Color Management: From here you can choose a color profile for your comp. You can make them too make a grayscale.
331707
search for CBIR on google u will get a no of resources. I had done one project related to this in c++. if u need any help mail me
1171909
In Photoshop CS (on PC) goto File->Save For Web.  A new window will appear with your image inside.  On the righthand side of the window is some dropdown lists.  Select the top most drop down list and choose one of the GIF options (I.E. "GIF 128 dithered"), start with the top choice and work your way down the list to "GIF 64 Dither," and look at your "optimized" image.\n\nWhat the numbers mean:  Basically, you're converting your full color image (which may have thousands or millions of colors) down to a maximum of 256 colors or less.  The less colors you have in your GIF, the smaller the filesize.\n\nOnce you've chosen a preset that you're happy with, click "Save" and save your image to wherever location on your computer makes sense.\n\nPresto!  You've converted your image to a gif.  One more thing, because you selected "save for web" initially, you've created a duplicate compressed image, so that you can keep your original full color PSD file.
233682
you could use Total Image Converter.  It is available for download at coolutils.com.
732448
You can apply a gray scale filter in onmouseover like this:\nfunction makeGray(i) {\ni.style.filter="gray";\n}\nfunction makeColor(i) {\ni.style.filter="none";\n}\n<img src="image.jpg" onmouseover="makeGray(this)" onmouseout="makeColor(this)" />\n\nBut that will only work in IE.  To make it work in all browsers you would need a grayscale copy of each picture.  You didn't say what platform you are using but you can easily find a php,asp.net or whatever script to convert images for you.
898742
It depends how many you put there.... You could for instance have an 8-bit grayscale JPEG, or a 24-bit full-colour JPEG. The bit depth isn't fixed.\n\nRawlyn.
1103773
the easiest way is to open the bitmap image in paint and to save it as a jpeg ........ ;)
433634
Yes, I would recommend a program called Irfan View, you can find it on Irvanview.com.. (its free too) You can perform whats called a Batch Conversion, you just select the pictures you want, and set the size you want, or tell it to reduce or increase size by percentages or pixels. If you do download the program, the option is in File>Batch Conversion, You can also change the format of the image, and alot more.
964135
Marpat looks like a bad quality digital image, made up of big pixels
374947
No, there are no shortcut keys to switch to Grayscale. However, it may be possible to switch to Grayscale in the Windows Display Properties, depending on whether your graphics card and monitor support the option.