Tiff
1 member found
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Tiff
United Kingdom
12 creative works found
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HOW I HANDLE RAW IMAGE FILES
by Steven LoveSince there are a lot of opinions on how to work with RAW files I thought I’d write a journal entry explaining what I know about RAWs and…
Since there are a lot of opinions on how to work with RAW files I thought I’d write a journal entry explaining what I know about RAWs and how I work with them. / . / This is a direct quote from my Olympus Camera manual; “RAW data is the unprocessed data from the camera’s sensor that has not undergone any changes or modification in white balance, sharpness, contrast or color.” / . / Generally speaking RAW is uncompressed relative to a compressed format such as JPEG. / However, RAW is compressed relative to TIFF (tagged image file format). / The difference between RAW and TIFF is that TIFF is completely uncompressed. When I shoot in RAW the file size is 13.5 megabytes. When I convert this to a TIFF the file size balloons to 23 megabytes. The reason for the size difference is because RAW uses what is called a “Lossless” compression algorythm similar to a compressed zip file. This method of compression preserves all image data with no losses. / . / JPEG ( joint photographic engineering group) uses what is called “Lossy” compression in which data is discarded or deleted in order to make room for the file compression. This results in loss of quality. Even at the highest quality setting there is still some loss of quality when converting a RAW or TIFF into a JPEG. / . / TIFF is the absolute best format for printing. In a TIFF all image data is there and there is no loss of quality when converting from a RAW to a TIFF. But TIFFs consume a lot of space on the Hard Drive relative to RAW. So TIFFs are not practical if you have a large number of TIFF images to store. / Another disadvantage is that TIFF is not uploadable on some websites and not all web browsers can read TIFF. / . / One solution is to use another format known as PNG (portable network graphic). / The PNG format uses the same lossless compression algorythm as a RAW making a PNG identical to a RAW in terms of file size and image quality preservation. / The main difference between a RAW and a PNG is that not all photo editing programs can read RAWs, but PNGs can be read by all photo editing programs including Photoshop. And some sites, such as RedBubble will accept PNG files but not RAWs or TIFFs. / . / It should be noted that Photoshop can read a RAW if you obtain what is called a “Plug-In” from the manufacturer of your camera and install it in the Photoshop Plug-Ins folder. This is necessary because one of the attributes of a RAW file is that there is extra data from the camera manufacturer in the RAW file that acts like a lock to prevent other programs from opening a RAW file. The Plug-In to Photoshop acts like a key that enables Photoshop to open the RAW file. Only then will you be able to use Photoshop to edit RAW files. / . / Some newer versions of Photoshop such as CS2 and CS3 may already have the Plug-Ins while older versions will have to be manually installed. I got the Plug-In when I logged onto the Adobe site and updated my CS2 version. / . / Now, the way I work with the RAWs is first I open it with Photoshop and then make all the necessary adjustments such as white balance, sharpness, contrast and so on. / Once all the adjustments are complete I then save the adjusted RAW as a PNG. This preserves the image quality of the RAW but as a PNG I can now upload it to internet sites that accept PNGs such as RedBubble. / . / By using PNG instead of JPEG your prints will be superior in color and clarity. / . / As an experiment I made a pair of prints off of my own printer to see if there was a visual difference. The result was interesting. / The print made from the PNG had brighter and more vivid colors than the version printed from the JPEG. / . / The JPEG version seemed more subdued in terms of overall brightness and color saturation. This is probably due to the compression of a JPEG. Even at the highest quality setting the JPEG has to discard some data to compress the image file. / It would appear that image brightness and color saturation is the first data to be discarded even with the JPEG quality at its highest setting. / . / My conclusion is the following; / If you want superior prints but also need to save space in your computer save your RAW as a PNG. / Use JPEG only if you have a slow dial-up connection or if the site your uploading to will only accept JPEG, otherwise PNG is the best. / . / Well, that’s how I handle RAWs. / . / If any of you have any additional information about RAWs that I did not cover here feel free to add them as a comment. / . / Thanks for taking the time to read this.
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‘Broken Love China’ pent-up porcelain, beloved kitchenware, ornamental partners, tea-party affairs, dinner-date drama, heirloom heroics
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From an original Pastel Drawing. Original still available. Only limited edition prints are for sale from my web site. / Extensive Folio Viewing / ”Caroline Ellis Web Site Greeting card available / Other limited edition art prints also available from my web site.
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Well, Now to Pull All My EPS and TIFF FIles and Convert!
by DLKeurMoseying about RedBubble, having been introduced here by artist StacyLee, I now realize I am going to have to spend some time pulling mas…
Moseying about RedBubble, having been introduced here by artist StacyLee, I now realize I am going to have to spend some time pulling master files and converting them from .EPS and .TIFF to .JPG. Argh. This in between appointments at the eye doctor, interviewing clients, working on projects, and troubleshooting ongoing campaigns. Sigh. Better get to work, I guess.
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*‘Broken Love China’ another anti-valentine for cynical hopeless romantics
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T is for Tufted Titmouse, and T is for Tommy, my husband, Tom, my son, Terry, Tammy, Tootsie, Taylor, Todd, Thomas, Ty, Tyler, Tyson, Teensy, Tiny, Tabitha, Ted, Theodore, Teddy, Tippy, Theo, Trent, Trina, Trish, Trisha, Tricia, Trevor, Troy, Tracey, Tiffany, Tiff, Tiffani, or anybody who’s trustworthy, tried and true, tender-hearted, thankful, thoughtful, tasteful, talented, top-notch! This testimony’s for the T’s!
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At the premiere of his film “Reservation Road” at the Toronto International Film Festival 2007. Toronto, Canada.
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After 18 months in Iraq my son-in law came home and asked my daughter to married him to me there is nothing like an American Hero and his love tieing the knot.
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