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PowerPoint Presentations:Graphics Basics – Part 1,[object Object],Ross Health Sciences,[object Object]
Initial Problems,[object Object],Most people just place images into PowerPoint® without paying any attention to the image’s type and attributes,[object Object],Scanners/cameras may not be set correctly and/or images may not be correctly reformatted prior to use for on-screen viewing,[object Object],Screen resolution limits not understood,[object Object],2,[object Object]
Initial Problems,[object Object],May have limited image manipulation knowledge /skills (use of imaging software),[object Object],May not be aware of/use retouching features built into the PowerPoint® program,[object Object],May not be willing to take the time to reformat incorrect images in use or willing/able to re-acquire  correctly formatted images snowball effect,[object Object],3,[object Object]
Rules of Thumb,[object Object],Use proper image type- to maximize both viewing quality and size compression,[object Object],Don’t be leery of image programs- simple steps and processes can yield quick and optimal results- shallow learning curve for most needs,[object Object],Know the limits of screen resolution,[object Object],4,[object Object]
Best Practices,[object Object],Acquire images in high-end format to archive for possible uses other than screen (printing)- TIFF,[object Object],Copy original to 2nd archive folder for on-screen version and translate for screen-limit resolution- JPEG,[object Object],5,[object Object]
Best Practices,[object Object],Keep original TIFF and JPEG secure and  pristine- work with copies only,[object Object],Put working copies of JPEG into folders adjacent to associated presentations,[object Object],Avoid serial resave of JPEGs- get new copy,[object Object],6,[object Object]
Best Practices,[object Object],GIF,[object Object],Text is in Front,[object Object],Text is Behind,[object Object],PNG,[object Object],JPEG,[object Object],7,[object Object],Use for simple graphics like ClipArt,[object Object],Use for the vast majority of photographic media types,[object Object],Use only when transparency is essential,[object Object]
Common Sources,[object Object],Textbook Scans,[object Object],Microscope Scans,[object Object],Digital Diagnostic Images,[object Object],Digital Image Databases,[object Object],Digital Camera Photographs,[object Object],Web Graphics,[object Object],Clip Art,[object Object],Personal Art Scans,[object Object],Computer Graphic Illustrations,[object Object],8,[object Object]
Image Dissection,[object Object],Right-click over an image in a folder and choose properties and define what is there with the General and Summary Tabs,[object Object],9,[object Object]
Image Dissection,[object Object],10,[object Object]
Image Dissection,[object Object],11,[object Object],1436px/300ppi= 4.79 inches ,[object Object],1464px/300ppi= 4.88 inches ,[object Object],Double-click image to bring up Format tab and you will see the actual size (4.88x4.79),[object Object]
Bit Depth,[object Object],21= 1 Bit  (Black or White pixels ONLY- monochrome),[object Object],28= 8 Bits [256] per color channel (R,G,B)=  24-Bit or 2563= 16.7 million colors; true-color image,[object Object],28= 8 Bit  (256 shades from BW; grayscale),[object Object],12,[object Object]
9MB TIFF,[object Object],13,[object Object]
420KB JPEG or 9MB TIFF,[object Object],Which is Which?,[object Object],14,[object Object],Click Here for Answer,[object Object],TIFF,[object Object],Image A,[object Object],Image B,[object Object]
420KB JPEG,[object Object],Enlarged 133%,[object Object],Apparent resolution,[object Object],2/3s * 150= 100PPI,[object Object],15,[object Object]
600KB JPEG or 2.8MB TIFF- ,[object Object],Which is Which?,[object Object],16,[object Object],TIFF,[object Object],Image A,[object Object],Image B,[object Object],Click Here for Answer,[object Object]
56KB JPEG or 2.8MB TIFF,[object Object],Which is Which?,[object Object],17,[object Object],Click Here for Answer,[object Object],TIFF,[object Object],Image A,[object Object],Image B,[object Object]
290KB JPEG or 36.7MB TIFF (cropped),[object Object],Which is Which?,[object Object],18,[object Object],Click Here for Answer,[object Object],TIFF,[object Object],Image A,[object Object],Image B,[object Object]
397KB JPEG (cropped),[object Object],19,[object Object],Actual Size 0.62x0.58inches,[object Object]
20,[object Object],12x enlarged =,[object Object],7.08x7.56inches,[object Object],Appearance 100PPI,[object Object]
Morale of the Story,[object Object],Screen resolution is screen resolution images with higher resolution will not display any better, but will take up much more file space, cause huge presentations, slow everything down and increase failures,[object Object],21,[object Object]

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