Download
information and communication technology n.
Skip this Video
Loading SlideShow in 5 Seconds..
Information and Communication Technology PowerPoint Presentation
Download Presentation
Information and Communication Technology

Information and Communication Technology

261 Vues Download Presentation
Télécharger la présentation

Information and Communication Technology

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Information and Communication Technology 4.1 Digital Multimedia Elements Ngan Wing Him 4D(19)

  2. Graphics • Two main type • Bitmaps and vector graphics

  3. bitmaps • Colletion of pixel • Number of pixel is determined by the number of bits used (also called colour depth) • ↑colour depth.=↑colour displayed

  4. Different between jpeg and png • jpeg(Joint Photographic Experts Group ) • Lossy compression • Pros:small file size • Cons:distortion after compression • png(portable network graphics) • Lossless data compression • Pros:support transparent effects, record of creator and creating date • Cons:large in size

  5. resolution • The measurement of number of pixel/unit length • For bitmap:measured by pixels/inch(ppi) • ↑ resolution=↑details = ↑file size

  6. Resolution of screen display are in range from 72 to 95 ppi Resolution of photograph printing are rage from 200 to 400ppi Length= Number of horizontal pixels resolution

  7. Vector Graphics • Composed of a number of objects • (shape,line or string of text) • Usually for simple chartsline arts and illustrations • Can be modify and rescale every details without affecting the quality • File size will not grow rapidly when more vector object are drawn

  8. word art word art

  9. ASCII Art • graphic design technique that utilizes computers for presentation • consists of pictures pieced together of ASCII characters

  10. HHHHHHHHHHHH IIIIII • HHHH HHHH IIII • HHHH HHHH IIII • HHHH HHHH IIII • HHHHHHHHHHHHHH IIII • HHHHHHHHHHHHHH IIII • HHHHHHHHHHHHHH IIII • HHHH HHHH IIII • HHHH HHHH IIII • HHHH HHHH IIII • HHHHHH HHHHHH IIIIII :) :-( (__) (oo) /-------\/ / || || * ||----|| ~~ ~~

  11. +++++<<<<<<<<<<<<<<((((((((((((((~~~~~~~(((((((((((<<<<<<<<+ +++++++<<<<<<<<<<<<<((((((((((((~~~~~~~~~(((((((((<<<<<<<<<+ ++++++++<<<<<<<<<<<<<<((((((((((~~~~~~~~~~(((((((<<<<<<<<<++ +++++++++<<<<<<<<<<<<<((((((((((((~~~~~~~~(((((((<<<<<<<<+++ ++++++++++<<<<<<<<<<<<<(((((((((((~~~~~~~~(((((((<<<<<<<++++ +++++++++++<<<<<<<<<<<<<<((((((((~~~~~~~~~~(((((<<<<<<<<++++ ++++++++++++++<<<<<<<<<<<<((((((~~~~~~~~~~~~((((<<<<<<<+++++ ==+++++++++++++<<<<<<<<<<<((((((~~~~~~~-~~~~((((<<<<<<++++++ ===+++++++++++++<<<<<<<<<<<(((((~~~~-----~~~((((<<<<<+++++++ ======++++++++++++<<<<<<<<<<(((((~~--''--~~~(((<<<<<<+++++++ ======++++++++++++++<<<<<<<<<((((~~-'..'-~~(((<<<<<<+++++++= ==============++++++<<<<<<<<<<(((~~-'..'-~~(((<<<<<+++++++== ========ssssss==++++<<<<<<<<<<((((~-'..'-~(((<<<<<++++++++== ssssssssssssss======++++<<<<<<<<(((~-''-~~((<<<<<+++++++==== zzzsssssssssssss========+++<<<<<<(((~~~~((<<<<<+++++++====== zzzzzsssssssssssss========++<<<<<<<((((((<<<<<++++++======== zzzzzzsssssssssssssss========+++<<<<<<<<<<<<++++++========== zzzzzzzzssssssssssssss==========++++<<<<<<<+++++==========ss zzzzzzzzzzssssssssssssssss=========+++++++++++++=========sss zzzzzzzzzzssssssssssssssssss==========+=+++++===========ssss zzzzzzzzzzzzsssssssssssssssss==========================ssssz zzzzzzzzzzzzzzzzzzzsssssssss========================sszzhhhh zzzzzzzzzzzzzhhhhhzzzzzzzzsssssssssss===sssssszzzzzzzhhhhhhh zzhhhhhhhhhhhhhhhhhhhhzzhhzzzzzzzzzzzzzzzzzzzzhhhhhhhhhhhhhh hhDDDDDDDhhhhhhhhhhhhhhhhhhhzzzzzzzzzzzzhhhhzhhhhhhhhhDhhDDD hhhhhhhhhhhhhzzhhhzzzzzzzzzzzzzzzzzzzzzzzzzhhhhhhhhhhhDDDDDD sssssssssssssssssss===============zhzzs=sszhhzshhhhhhhhDDDBB ssssssssssss====================shBBDBh+zhhhzsshDDhzzzzhzzzs sssssssss=======s=======+==+=sssszhzzzs<(<+==zDDDDhs==szs=zD =s=ss======szs==s===+++++===szhhz<((----<<+++=sssss=====sshD ssszzss=shzsss=s=+++++++++++++++<<<~-<=<++<+++++++++=====szh zzzDhs==zBDsshhh=====++++++++++++<<(-+s+(<+++============sss NBBDzs============DBs===+=+sh=+++<(~-''-~<+++hhhh=hs======== zzzzs=============ss==+++=zDDs=+++<(-''-(<+++====+=========s ssss==ss============+=+==zBBs++<+<+<-''-<++++++++=========ss sss=szhhs===========+==+=sDz=+++++<(-''-<+++++===========sss sssszDNNBzs=========+====+=+++++++<(---~(<++=+=+=+=====sssss ssssshDDhzsss======+=s=+=+=+++++++<(~--~(++++++===shs=s=ssss ssssssssss=s========hBs++=++++++++<(~--~(++++==sDBDNBz==ssss sssssssssss=ss===sDBDNDzhh===+++++<(-'-~(<+=+==sNNNNBz=sssss sssssssssssssss==sDBBNBNNh====+++++(~--~<+++====zzzzssssssss sssssssssssssssss=sszhzzzs======++<(~--~<+========ssssssssss szzsssssssssssssss==ss===========+<<~--~<++========sssssssss zzsszsszssssssssssssss============+<~~~(<+========ssssssssss zszzzsssssssssssss=s=ss===========++~~-~<=========ssssssssss zzhBhzzsssssssssssss==s===========+<~~~(<=======ssssssssssss hhBBDDhssssssssssssssss=s=========+<~~~(+======sssssssssssss BBBBDNDsssssssssssssss=s==s=======+<~~((+======sssssssssssss BBBNNNBBDzsssssssssssssss=========+<(~(<+=====sssssssssszzzz NNNNNNNNNhsssssssssssssss=========+<(~((+====ssssssssssszzzz