for my photography class i need too kno what a filter does in the darkroom in an enlarger not a camera?
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Soory I found your question too late.  Good luck!
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maybe you could try a photography class. i was never really into photography until i took black and white photography last semester, and now i really like it, but this semester, i'm taking digital photography. my school has it's own darkroom, so it was interesting and fun, and i miss being in the darkroom. however...if you take a photography class, like black and white, be prepared to spend some money cause you'll probably have to buy your own film and printing paper and maybe even a camera, unless you already have one or are able to borrow one from someone. luckily for me, i was able to borrow my dads camera.
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Here you can find links to implementations of Deflate (page down to "DEFLATE" heading) and JPEG ("JPEG Hardware Compressor" heading) algorithms.\n\nHope it will help.
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Its a filter that checks all outbound (material that you send) material for adult or obsene content
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Way back in the olden days, I used to take my SLR with 2 lenses, 28-50 for wide shots and 75-200 with a 2x coupler for close ups. Never had a problem, but then again there was no terrorists problems back then. I still have some nice shots of Mike Schmidt, Greg Luzinski and Steve Carlton somewhere at my mother's house. I think as long as you let them search your bag, you're okay.
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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.
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Refers to graphics filters
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It works... (see mine!)   Just use any digital camera to capture your image (b&w works best, as it is a smaller file) and make it as small as possible!   Save as a gif or jpg, and voila!
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Check Canon website for this\nOr\nOne of the links below\n\nXLMan
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A small hole can act as a sort of lens, focussing the light rays.  There was something called the camera obscura that used this principle.  It was a dark room with a light colored wall.  On the opposite wall, usually an outside wall, a small hole was placed in the wall.  The sunlight from outside reflected off the objects outside and were focussed on the light colored wall to form an image of what was outside.
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In Photoshop, the command is under the "Image" drop down menu, then click "Image size", then in that box change the "resolution" to 72.\nFor PhotoImpact, the command is under the "Format" drop down menu. Otherwise it works the same as Photoshop.\nIf you're not using one of those, use the "help" drop down menu in whatever image software you have, and search for either "resolution" or "image size"
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Assuming your image is transparent, you would just use a projector-type bulb or some other light souce which has a relatively small focal spot (definitely not a frosted bulb)\n\nIf the image source is not transparent, you'll need to add a large lens and a box to put it, the image, and the light into in order to make a "camera obscura".  You can write me for more details if interested.
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yea, adobe photoshop CS has a whole gallery of filters that changes your image.. \n\nAdobe Photoshop CS is worth investing in, I find it one \n\nI use this program in my degree and its one of the best, it has lots of features in it, and there are some good books on it if you really want to get good at the program. The one I have is: sams teach yourself adobe photoshop cs in 24 hours by carla rose. it is quite good, with text and images.\n\ni hope that helps =)!
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photo-paper is light sensitive as you have to keep negatives in the dark....sorry to all computor people who have copiers there are still old people out there..  try your local photography shop.
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.NEF is a specific format for your camera (like PSD is for Photoshop). You are going to have to convert it into a jpeg or a gif to view it in photoshop. I don't know how to do this the easy wya.. but thi is the hard way.\n\nOpen up the .NEF image in the image editor your camera came with. Then use the square marquee and select the entire image. W=Once you have copied it open up photoshop and select "NEW" from the "FILE" tool. Photoshop will automaticly set the dimensions that corrispond with the image so you dont have to adjust anything... unless you want to. Then paste it onto the canvas. You can either choose to save it as a JPEG or a PSD... which ever format you desire. I suggest working with a transperant canvas. Because with the white one i get confused because sometimes i think its just a layer with white paint on it.
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http://www.yotophoto.com - It searches a good range of free stock photography sites, many of which have been taken on a neutral background. \n\nIf you're willing to pay for a commercial colletion, try Hemera PhotoObjects: http://www.hemera.com/products/windows.jsp . These come with the masking done for you.
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i have infranview and it works very well...u just go to edit resize image and click on half