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Digital Image Development

David Retherford Digital Image Processing Lab Co-ManagerJon Findell - Digital Image Processing Lab Co-ManagerMargie Garland Faculty Multimedia Center CoordinatorSiglinde Quirk - Graphic Artist CoordinatorJoe Fauvel Graphic Artist Coordinator. Topics. Scanning techniquesPhotoShop techni

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Digital Image Development

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    1. Digital Image Development Summer Institute 2003

    2. David Retherford – Digital Image Processing Lab Co-Manager Jon Findell - Digital Image Processing Lab Co-Manager Margie Garland – Faculty Multimedia Center Coordinator Siglinde Quirk - Graphic Artist Coordinator Joe Fauvel – Graphic Artist Coordinator

    3. Topics Scanning techniques PhotoShop techniques Preparation of images for various digital formats Questions Evaluations

    4. Scanning Techniques Scan for the intended output: How you scan an image greatly depends on how the image is going to be used. Different scanner settings will be used for different output devices. Output devices: Printer, Computer Screen, Commercial Press. Some common file types: 1. .tif – TIFF, Tagged Image File Format. TIFF files are good for printing, editing and transferring between programs. It supports 24 bit color, image channels and has excellent printing capabilities. 2. .psd – PSD, PhotoShop file format. This is the default format for PhotoShop and is great for editing and printing. However, it is not a good transfer format since not too many other programs support it. 3. .eps – EPS, Encapsulated PostScript file format. Is a standard format for importing and exporting PostScript language files among applications in a variety of heterogeneous environments. 4. .jpg – JPEG, Joint Picture Expert Group file format. Is a compressed format that is excellent for screen display of photographs, file transfer and the Internet. This format throws out file format information that I not related to screen display. When applying compression redundant information in the image is discarded to reduce file size. JPEG supports millions of colors and allows for graphic compression. 5. .gif – GIFF, Graphic Interchange File Format. Is primarily used for creating web graphics. It only supports 8 bit or 256 colors and is widely supported on all computer platforms. Not good for printing or editing, best for computer generated graphics rather than photographs.Some common file types: 1. .tif – TIFF, Tagged Image File Format. TIFF files are good for printing, editing and transferring between programs. It supports 24 bit color, image channels and has excellent printing capabilities. 2. .psd – PSD, PhotoShop file format. This is the default format for PhotoShop and is great for editing and printing. However, it is not a good transfer format since not too many other programs support it. 3. .eps – EPS, Encapsulated PostScript file format. Is a standard format for importing and exporting PostScript language files among applications in a variety of heterogeneous environments. 4. .jpg – JPEG, Joint Picture Expert Group file format. Is a compressed format that is excellent for screen display of photographs, file transfer and the Internet. This format throws out file format information that I not related to screen display. When applying compression redundant information in the image is discarded to reduce file size. JPEG supports millions of colors and allows for graphic compression. 5. .gif – GIFF, Graphic Interchange File Format. Is primarily used for creating web graphics. It only supports 8 bit or 256 colors and is widely supported on all computer platforms. Not good for printing or editing, best for computer generated graphics rather than photographs.

    5. Scanning Guidelines Resolution Issues: Image Resolution: Measured in PPI or Pixels per Inch, it is the number of pixels per inch in an image file. Pixel Depth: The amount of information the computer stores for each pixel. The higher the bit depth the more colors a file can have. Monitor Resolution: Affects how the image is displayed. Screen Frequency: LPI or Lines per Inch. A function of the printer and affects quality of the final printout. Output Resolution: Measured in DPI or Dots per Inch. A function of the printer and affects quality of the final printout. Scan Resolution: Output Image size - If the final image size will be larger than the original image you will need additional information to produce adequate output resolution. Resolution Issues: Image Resolution: Measured in PPI or Pixels per Inch, it is the number of pixels per inch in an image file. Pixel Depth: The amount of information the computer stores for each pixel. The higher the bit depth the more colors a file can have. Monitor Resolution: Affects how the image is displayed. Screen Frequency: LPI or Lines per Inch. A function of the printer and affects quality of the final printout. Output Resolution: Measured in DPI or Dots per Inch. A function of the printer and affects quality of the final printout. Scan Resolution: Output Image size - If the final image size will be larger than the original image you will need additional information to produce adequate output resolution.

    6. Document Scanning OCR – Optical Character Recognition, convert scan pages that are image files into a text format file like Word document, RTF, ASCII text, WordPerfect. PDF – Portable Document Format, self-contained cross-platform document. It is a file that will look the same on the screen and print regardless of the computer or printer. They contain the complete formatting of the original document including fonts and images, but are highly compressed to make small files.OCR – Optical Character Recognition, convert scan pages that are image files into a text format file like Word document, RTF, ASCII text, WordPerfect. PDF – Portable Document Format, self-contained cross-platform document. It is a file that will look the same on the screen and print regardless of the computer or printer. They contain the complete formatting of the original document including fonts and images, but are highly compressed to make small files.

    7. UCF/Kodak Digital Image Processing Lab DIPL is located at 12424 Research Parkway Suite 169 In the Research Pavilion Telephone: 407-882-1191 Fax: 407-882-2430

    8. What is DIPL? Supplies direct and indirect support for Undergraduate and Graduate courses Establishes University/Industry Partnerships with a unique facilities co-habitation formula Provides a variety of Digital Imaging services to the campus through University and Industry support

    9. PhotoShop Techniques

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