Juxtaposition
1\2) Flower Rock - The flower is blooming on rock
6\2) Duck Rock - The duck is hit by the rock
7\7) Dog Tree - The dog is sleeping under a tree
Introduction
INTRODUCTIONIn today's world of high technology, mobile computing has become the most omnipresent medium for so many different applications. From the simple downloading of the mp3s of the youth to downloading business application/software of the professionals, or from simply carrying out transactions to videoconferencing by the career people to simply having fun with a number of social networking sites, it is simply a part of the lives of the majority using any internet-connected computers or mobile handsets.
Friday, 25 September 2015
Friday, 4 September 2015
Sunday, 14 June 2015
Chapter 13 : Digital Video Data Sizing
Data Rate
- is the rate where information being transferred
- per unit time
Calculating file size of an uncompressed digital file
- is the rate where information being transferred
- per unit time
Calculating file size of an uncompressed digital file
Raw video data size
= frame size (width X height) * frame rate (fps) * colour depth (in bytes) * time (in seconds)
8 bits = 1 byte
|
1 kilo(bit/byte) = 1,024 (bits/bytes)
|
1 Mega(bit/byte) = 1,048,576 (bits/bytes)
|
1 Giga(bit/byte) = 1,073,741,824 (bits/bytes)
Factors to consider when selecting graphics to be used in a multimedia project:
- purpose - cost - quality |
Chapter 12 : Broadcast Video Standards
Broadcast Video Standard
•NTSC (National Television Standards Committee)
- 525 lines/60Hz
- This standard is used primarily in North America, Taiwan, South, Korea, Japan.
- 30 fps
•PAL (Phase Alternate Line)
- 625 lines/50Hz
- This standard is used primarily in Europe, Asia, and Southern Africa.
- 25 fps
•SECAM (Systeme Electronique Couleur Avec Memoire)
- 625 lines/50Hz
- This standard is used primarily in France, parts of Middle East, and Russia.
- 25 fps
Aspect Ratio
• The aspect ratio of a frame describes the ratio of its width to its height in the dimensions of a frame
• For example, the frame aspect ratio of NTSC or PAL video is 4:3, whereas DVD, HDTV, and motion-picture frame sizes use the more elongated aspect ratio of 16:9
Chapter 11 : Drawing Shapes
Shapes
- clipping mask : act like a cookie cutter
- path shape : path created with pen tool
- fill shape : created with pixels
Shape Layer
- two thumbnails on shape layer
- left thumbnail contains pixel of colors (fill layer)
- right thumbnail contains vector based circle shape (vector mask)
- the shape act as mask, hiding all the fill layer pixels outside white area of the mask
- clipping mask : act like a cookie cutter
- path shape : path created with pen tool
- fill shape : created with pixels
Shape Layer
- two thumbnails on shape layer
- left thumbnail contains pixel of colors (fill layer)
- right thumbnail contains vector based circle shape (vector mask)
- the shape act as mask, hiding all the fill layer pixels outside white area of the mask
Chapter 9 & 10 : Text
Type
- it is vector image
Type of attribute
- tracking - leading
- kerning - vertical / horizontalscale
- baseline shift - attributes
Paragraph Type
- A paragraph is a series of word created when you start typing and ends when you press enter key.
Clipping Mask
- used to add gradient fill to the text.
Applying Style
- can add or drop shadow , bevel and emboss effects.
- it is vector image
Type of attribute
- tracking - leading
- kerning - vertical / horizontalscale
- baseline shift - attributes
Paragraph Type
- A paragraph is a series of word created when you start typing and ends when you press enter key.
Clipping Mask
- used to add gradient fill to the text.
Applying Style
- can add or drop shadow , bevel and emboss effects.
Thursday, 21 May 2015
Chapter 6 & 7: Working with Layers and Layer Styles
Layer
- A layer is any image on a transport background which is stack of another.
- Combination of several layer called merging.
Functions
- create composite image - add special effects
-create complex projects - repair photos
- correct colour
Types of Layer
- Normal layer : added on top of current layer
- Adjustment layer :modify an image without destroying the pixels
- Layer mask : protect area of layer
- Shape layer : contains vector images
- Type layer : contains text
Merge & Flatten Layers
- Merging : combining two or more layers
- Flattening : combining all layers in one file to optimize the file size
- Linking : connecting layers together (layers move together)
Layer Style
- adding special effects to the layer
Wednesday, 20 May 2015
Chapter 4 & 5: Making and Manipulating Selections
Selection Tool
- enabling yourself to only paint in one area while the rest of your canvas is left unaffected.
Aliasing
Feathering
- softening edges of image
Lasso tool
- Polygonal Lasso Tool : it allows us easily draw free form selection outlines based on straight sided polygonal shapes.
- Magnetic Lasso Tool : tracks the edges of an object based on colour tone
- Lasso Tool : free hand tracing for selection
Transforming Selection
- scale -rotate -skew -perspective -flipping
Chapter 3: Painting and Drawing with Colour
Working with the Brushes Palette
- control how the painting tools interact with the image.
- to customize and create brush in many ways
Painting Tools
- add colour and retouch images
- works only on bitmap images which means image that has pixels
Creating Gradient
- 5 option of gradient
- there are a few preset gradient available in option bar
Eraser Tool
- 2 type of eraser : Background eraser => delete pixels of background layer Magic eraser => delete the area that clicked which is same colour
Chapter 2: Viewing and Managing Documents
Colour modes
- colour mode = colour spcae / colour model
- visible spectrum = colours that can be seen by human eyes
- gamut = produce by device
- colour mode = colour spcae / colour model
- visible spectrum = colours that can be seen by human eyes
- gamut = produce by device
History palette
- undo multiple commands
- it has list of recently executed commands
Changing on screen size of an image
- click Image > Image size
Wednesday, 25 March 2015
Chapter 1 : A Quick Tour of Adobe Photoshop
Opening and Saving Images
How to open and save image
~To open: File => Open
~To save: File => Save
File Formats
~preserve layers
File format | Uses |
---|---|
PSD (Photoshop Document) | Used for Photoshop document |
PDF (Portable Document Format) | Used for portable document |
PSB(Large document format) | Used for large document |
TIFF(Tagged image file format) | Used for Printing |
~does not preserve layers
File Format | Uses |
---|---|
GIF , JPG | Web Graphics |
RAW | For Digital cameras |
Pixel
Physical point in a raster image, or the smallest addressable element in an all points addressable display device.
* 1 bit = 2 colours
* 4 bits = 16 colours
* 8 bits = 256 colours
* 16 bits = 65,536 colours
* 24 bits = over 16 million colours
Relationship between resolution, on screen size and print size
on screen size / resolution = printed width
resolution = 300 pixels per inch for printing
= 72 pixels per inch for display
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