Okay, to get the tags to work for you, you're going to have to give up thinking in terms of 8x10 and 5x7. At least for a part of the process.
When you say "hi-res 8x10", you have to clarify what that means in pixel values. If "hi-res" = 300dpi to you, then a bit of simple math will give you the pixel values. 8"*300dpi = 2400pixels 10"*300dpi = 3000pixels Therefore, Hi-res 8x10 = 2400x3000 pixels >From that, you want to get a hi-res (300dpi) 4x6. 4*300 = 1200px 6*300 = 1800px So all you need to do is tell the image manipulation tag that you want to resize that image to 1200*1800. And as you've seen, some tags allow you to just specify one dimension and the other resizes proportionately. To size for the screen, you probably already know the desired pixel measurements (or at least width) for your web thumbnail and preview, so you just plug that in. One word of caution: don't try to resize to a larger pixel measurement. If the person gives you a hi-res 4"x6" image (1200x1800), don't try to make that into a hi-res 8"x10" (2400x3000). If you do, you'll be inventing pixels from thin air and it won't look good. Hope that helps and good luck, -Kevin ----- Original Message ----- From: "Rick Faircloth" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Thursday, September 11, 2003 12:12 PM Subject: RE: Image manipulation > It was the resampling that was complicating the discussion...my bad... > > But that brings me back to my original question about the CF image > manipulation tags. I want to be able to automatically resample the images > for display so the file size is smaller while keeping the originals (if they > are > scanned or taken at higher resolutions) at the same ppi. > > I don't know yet whether or not any of the tags will perform that function. > > I want to be able to upload a hi-res 8x10 image, have it downsized > (dimensions only) > to a 5x7 and 4x6 (still at same ppi, if the camera's ppi setting is > variable) > then resample the image to 72 ppi for display on the website. The 8x10, > 5x7, and 4x6 > are for downloading, saving, and printing...that's what I'm trying to > accomplish. > > Anyone know what tag can do this? CFX_Image? CF_MagickTag/ImageMagick? > CFX_ImageCR from Efflare? > > If CFX_ImageCR can accomplish all of that... ppi manipulation and > resampling, too, > then it'll be worth $149, easily... > > Thanks for your help... > > Rick > > > > -----Original Message----- > > From: Claude Schneegans [mailto:[EMAIL PROTECTED] > > Sent: Thursday, September 11, 2003 12:32 PM > > To: CF-Talk > > Subject: Re: Image manipulation > > > > > > >>Can't agree there...perhaps we're comparing apples to oranges... > > > > Excatly: you are comparing two different images! > > > > >>Took the same photo and resampled it to 72 pixels per inch (ppi), > > 360 pixels wide, and 503 pixels high. (Maximum quality JPEG setting) > > > > When you "resample" an image this way you get a different image. > > You say yourself one is "1501 pixels wide", the other one is > > 360 pixels. > > Of course, if you print them at the same size, thay won't > > look the same. > > Here are your apples and oranges. > > > > >>I'm not sure if we're missing something in this discussion, > > > > I'm pretty sure I'm not ;-) > > > > >>Does using "ppi" as opposed to "dpi" to refer to > > resolution make any difference in our discussion? > > > > If you see a difference between a pixel and a dot, yes it > > could make a difference, but for me it doesn't. > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > ~~~~~~~~| > > Archives: http://www.houseoffusion.com/lists.cfm?link=t:4 > > Subscription: http://www.houseoffusion.com/lists.cfm?link=s:4 > > Unsubscribe: > http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=708.628.4 > > Signup for the Fusion Authority news alert and keep up with the latest news > in ColdFusion and related topics. > http://www.fusionauthority.com/signup.cfm > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/lists.cfm?link=t:4 Subscription: http://www.houseoffusion.com/lists.cfm?link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. http://www.cfhosting.com
