Media Elements ITK-352Slide 2
Objectives comprehend the fundamentals of diverse media components know how to catch diverse media sorts for incorporation in sight and soundSlide 3
Multimedia Elements The development of superb interactive media items depends upon the effective combination of a progression of sorts of unmistakable information. Text -Animation Audio -Other Video ImagesSlide 4
Multimedia The incorporation of sound, feature, PC illustrations and content under PC control. A multi-tactile affairSlide 5
Data Types - Classified by the faculties Sight Writing, Painting, Photography augmentation of sight after some time and space TV, Video-conferencing expansion of sight crosswise over spaceSlide 7
Percentage of Cones Red (64%) Green (32%) Blue (4%) http://www.siggraph.org/instruction/materials/HyperGraph/shading/coloreff.htmSlide 9
Color BlindSlide 11
The person with ordinary shading vision will see a 5 uncovered in the speck design. A person with Red/Green (the most widely recognized) visual impairment will see a 2 uncovered in the dabs.Slide 12
Blue sort on red is difficult to peruse. It reasons eye strain.Slide 13
Red sort on blue is additionally difficult to peruse. It reasons eye strain. strain.Slide 14
Green sort on red is additionally difficult to peruse. It reasons eye strain. strain.Slide 15
Order in which hues shows up The apparent contrasts inside and out ( chromostereopsis ) that outcome can moderate perusing speed extensively.Slide 18
Graphics Bitmmaped/Raster Monitors , ( RGB ) Vector Graphics Hybrid/MetafilesSlide 19
Bitmaps Common employments of bitmap design include: Photographic pictures Paintings and drawings Document checksSlide 20
True ColorSlide 25
Pseudo-Color (CLUT)Slide 26
Dither It reproduces the hues from the orginal picture that are not accessible in the new, lessened palette.Slide 27
Vector GraphicsSlide 28
Vector GraphicsSlide 29
Vector Graphics Demo Cards DragonSlide 30
Vector Graphics Common employments of vector representation: CAD/CAM bundles Architectural arrangements Diagrams Route arrangingSlide 31
Demo: 3D/FXSlide 32
Anti-associating A procedure utilized on a dim scale or shading bitmap presentation to make corner to corner edges seem smoother by setting pixels close to the edge to middle of the road hues as indicated by where the edge crosses them.Slide 33
Image Quality The quality with which a picture is shown on a PC scene is subordinate upon a few variables: The first\'s nature picture The way the picture was caught The shading profundity of the picture The illustrations arrangement used to store it The kind of pressure utilized Lossy versus Lossless The representation card on the PC The PC\'s nature screenSlide 34
Resolution the greatest number of pixels that can be shown on a screen, communicated as (number of flat pixels) x (number of vertical pixels). i.e., 1024x768. The proportion of flat to vertical determination is normally 4:3, the same as that of traditional TV sets.Slide 35
Image File Formats GIF (Compuserve) JPG (Joint of Photographers Expert Group) PNG (Portable Network Graphics) DIBs (Device Independent Bitmaps) BMP, DIB, RLE PCX (PC PaintBrush) TIFF (Tagged Interchange File Format) PSD (Adobe Photoshop)Slide 36
Cross-Platform Formats DXF (Drawing Interchange File) IGES (Initial Graphics Exchange Standard) Most normal bitmap designs on the Web JPEG GIF PNGSlide 38
Senses: Hearing and discourse augmentation of hearing crosswise over space Telephone, radio expansion of hearing after some time CDs, tapes, voice message, telephoneâ¦Slide 39
Sound For sound to exist to us, three things are vital: Generation Transmission PerceptionSlide 40
Digital Audio Jargon Amplitude demonstrates the sound\'s volume; so the focuses in a waveform with the best plentifulness sound the loudest. Period speaks to the separation between two sequential crests in a waveform . Recurrence is the quantity of periods in one second.Slide 41
Audio Jargon Hertz (Hz) A hertz is comparable to a period. One period for every second equivalents one hertz. One thousand periods for every second equivalents one kilohertz (KHz).Slide 42
Sound Volume: dB Volume or tumult: (Unit of estimation: decibels, dB) This is the sound\'s weight. Decibels are the proportion between a reference purpose of a logarithmic scale and the level that is really gotten.Slide 43
An increment of 10 dB is twice as boisterous Human discourse is for the most part imitated some place in the 55 to 70 dB range. The upper SPL of music will ordinarily go from 65 to 90 dB.Slide 44
size of Sound Pressure Levels (SPL). The louder a specific sound, the higher it will be on the vertical scale. SPL http://www.soundinstitute.com/article_detail.cfm/ID/106Slide 45
Dynamic extent Dynamic reach is the reach between the gentlest and loudest sounds. music has a much more prominent element range than discourse. http://www.soundinstitute.com/article_detail.cfm/ID/106Slide 46
Audio SamplingSlide 49
Audio Files MIDI (Musical Instrument Digital Interface): An industry-standard association for PC control of musical instruments and gadgets. A MIDI document contains notes, timing, and instrument assignments for different channels. The document contains data about every note, including the key, channel number, length of time, volume, and speed.Slide 50
Audio Files RIFF (Resource Interchange File Format) Platform-free mixed media detail distributed by Microsoft and others in 1990 that permits sound, picture, activity, and other sight and sound components to be put away in like manner arrangement. WAV (Wave File Format) MP3 (MPEG â 1, Audio Layer 3)Slide 51
WAV recordSlide 52
Audio - Space Requirements The accompanying equation can serve to gauge sound stockpiling needs. (testing rate * bits per test)/8=bytes/secSlide 53
Audio Files: MP3 . Is the document augmentation for MPEG, sound layer 3. Layer 3 utilizes perceptual sound coding and psychoacoustic pressure to uproot all pointless data (all the more particularly, the excess and superfluous parts of a sound sign. The stuff the human ear doesn\'t hear in any case). Layer 3 contracts the first solid information from a CD (with a *bitrate of 1411.2 kilobits for each one second of stereo music) by a variable of 12 (down to 112-128kbps) without yielding sound quality.Slide 54
Audio Files: . WMA Microsoft/WMA W indows M edia A udio, a Microsoft record design for encoding advanced sound documents like MP3 however can pack documents at a higher rate than MP3. WMA records, which utilize the â.wmaâ document augmentation, can be of any size packed to coordinate a wide range of association rates, or data transmissions.Slide 55
Audio Files: AAC A dvanced A udio C oding, one of the sound pressure organizations characterized by the MPEG-2 standard. AAC is once in a while alluded to as MPEG-2 NBC (not in reverse good) in light of the fact that it is not perfect with the MPEG-1 coding plan. AAC gloats higher quality sound generation than MP3 and requires 30% less information to do as such.Slide 56
Touch Haptic interfaces (augmentation of touch over space) Sculpture (expansion of touch after some time) http://wearable.www.media.mit.edu/ventures/wearables/timeline.htmlSlide 57
Cybergrasp power criticism gloveSlide 58
Haptic InterfacesSlide 59
Smell expansion of smell over space and time Perfume Electronic Noses use sensors to distinguish gasses. The sensor exhibit may deliver an interesting unique mark of a scent. Sensorama (1960)Slide 60
Text Lexical \'one decides for every word its definition\' Syntactic \'the subject, activity, and object of a sentence is resolved\' Semantic \'the significance of a sentence is resolved\' Pragmatic \'the content\'s reconciliation semantic importance into the peruser\'s model of self and of the world\'Slide 61
Text Standards ASCII, EBCDIC ISO 10646 In 1983 the International Standards Organization began improvement of ISO 10646 which is a standard for encoding characters. The point of this was to build up a 2-byte (16-bit) character set which could manage up to 65,536 characters. Unicode In 1987 Mark Davis of Apple Computers and Joe Becker and Lee Collins at Xerox PARC set forward Unicode which was to take into account \'one of a kind, all inclusive, and uniform character encoding.\'Slide 62
Text Acquisition Keyboarding Bulk content stacking ASCII RTF (Rich Text Format) SGML ODA (Open Document Architecture) XML VoiceXMLSlide 63
OCR Optical Character Recognition (1974) Ray Kurzweil created his first perusing machine for the visually impaired By 1978 the Kurzweil\'s perusing machine was produced for information section applications.Slide 64
OCR Factors to consider when analyzing OCR for utilization in your own applications include: Speed of catch Accuracy rates Material took care of Customization systems OCR versus Bitmapped contentSlide 65
Text - Fonts Bitmapped content Predefined size weightSlide 66
Text - Fonts Outline (vector) Fonts Page Description Language (PDL) PostScript TrueType ScalableSlide 67
Text Guidelines Headings, credits, depictions, key focuses Things to consider: Keep it straightforward, Don\'t utilize language Generally, you ought to utilize a most extreme of three typefaces in a greatest of three focuses sizes. Content ought to be set in fitting organizations, that is, set content flush left, set numbers flush right, maintain a strategic distance from focused content in records, and stay away from short advocated lines of content.Slide 68
Text Guidelines For settled width textual styles, supported lines of content can moderate perusing rate by 12 percent. This is a case of an altered width textual styles This is a case of variable-width text styles Use capitalized and lowercase characters at whatever point conceivable, that is, stay away from every single capital line of content, which can likewise m
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