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[email protected] 5403 (59003)050-523 5403 (59003)
www.biocenter.helsinki.fi/bi/editor/DIP.pptwww.biocenter.helsinki.fi/bi/editor/DIP.ppt
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ScheduleSchedule6.4. (Tue) 8.4. (Thu) 13.4. (Tue) 14.4. (Wed)
Color systems, image formats
Photoshop basics &tools
Photoshop practice
Office basics
20.4. (Tue) 21.4. (Wed) 26.4. (Mon) 28.4. (Wed)
Corel Draw Graphic designing
PDF basics Lecture
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What’s it about?What’s it about?
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PhotoshopPhotoshop
CorelCorel
Power PointPower Point
ExcelExcel
PDFPDF
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Color Color systemssystems
Image Image formatsformats
ResolutionsResolutions
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RGBRGBAdditional color systemAdditional color system
red, green and blue lightred, green and blue light
256 levels of every color (8-bit.)256 levels of every color (8-bit.)
more than 16 million colors (256more than 16 million colors (25633, 24-, 24-bit)bit)
used in web, in screens and for used in web, in screens and for example MS:s example MS:s
Office-programsOffice-programs
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RGBRGB
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CMYKCMYKSubtractive color systemSubtractive color system
Cyan, Magenta, Yellow and Black (K) Cyan, Magenta, Yellow and Black (K) paintpaint
Press-housesPress-houses
levels are posted in percentslevels are posted in percents
32-bit 32-bit
RasterizingRasterizing
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CMYKCMYK
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LABLABThree-dimensioned Three-dimensioned
Used mostly in measuring and Used mostly in measuring and analyzing colorsanalyzing colors
A- and B-axis (2-d coordinates) about A- and B-axis (2-d coordinates) about the color the color
L-axis (perpendicular) about the tint.L-axis (perpendicular) about the tint.
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Indexed colorIndexed colorUsed mostly in GIF-pictures for webUsed mostly in GIF-pictures for web
Only 256 colors Only 256 colors
Transparency featureTransparency feature
Not suitable for press-use.Not suitable for press-use.
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grayscalegrayscale256 tints of black256 tints of black
In tables, grayscale images etc. In tables, grayscale images etc.
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Color circleColor circle
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Image formatsImage formatsPSDPSD
JPGJPG
EPSEPS
TIFFTIFF
GIFGIF
PNGPNG
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PSDPSDPhotoshop-formatPhotoshop-format
LayersLayers
Original dataOriginal data
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JPGJPGEffective compressing algorithmEffective compressing algorithm
““Lossy” (loses information)Lossy” (loses information)
Usage: www, MS-officeUsage: www, MS-office
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JPGJPG
150 dpi/saved once quality 6
150 dpi/saved once quality 0
150 dpi/saved twice quality 0
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TIFFTIFFLossless compressing (LZW)Lossless compressing (LZW)
Independent for platform (PC, Independent for platform (PC, Mac)Mac)
Usage: press (Office)Usage: press (Office)
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EPSEPSEncapsulated PostScriptEncapsulated PostScript
““Raw data”Raw data”
Can also be compressed (jpg) Can also be compressed (jpg)
Usage: pressUsage: press
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GIFGIFIndexed color (256)Indexed color (256)
LosslessLossless
Transparency Transparency
Can be saved also interlacedCan be saved also interlaced
Usage: www, MS-OfficeUsage: www, MS-Office
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GIFGIF
JPG/quality 12 GIF
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PNGPNGLosslessLossless
Indexed-color, grayscale, and Indexed-color, grayscale, and truetrue--color supportedcolor supported (up to 32-bit)(up to 32-bit)
transparencytransparency
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ResolutionsResolutionswww:www: 72 dpi (exact size)72 dpi (exact size)
Word & PP:Word & PP: 72-150 dpi72-150 dpi
Press:Press: 300 dpi (exact 300 dpi (exact size)size)