Bitmap Image Editing
B.Sc. (Hons) Multimedia Computing
Media Technologies
Agenda
Bitmapped Graphics Transformations Effects
B.Sc. (Hons) Multimedia Computing
Media Technologies
Bitmapped Graphics
Allow for high-definition photorealistic images.
Image encoded on a pixel by pixel basis. Image resolution degraded when scaled Supports lossless compressions algorithms File Formats - .BMP, .GIF, .JPG, .TIF .TGA Software
Adobe Photoshop ( with ImageReady) Macromedia Fireworks PaintShop Pro (Shareware)
B.Sc. (Hons) Multimedia Computing
Media Technologies
True Colour
Human eye can distinguish between 224
colours = 16 777 216 colours Thus any system giving >= 224 colours
can be described as ‘Truecolour’ or Truecolor
24 bits per pixel yields true colour 16 bits per pixel often referred to as ‘High Colour’
B.Sc. (Hons) Multimedia Computing
Media Technologies
Image Transformations
Scaling Rotations Translations Refl ections (fliip) Skewing Freeform
B.Sc. (Hons) Multimedia Computing
Media Technologies
Translation
B.Sc. (Hons) Multimedia Computing
Media Technologies
Scaling
B.Sc. (Hons) Multimedia Computing
Media Technologies
Rotation
B.Sc. (Hons) Multimedia Computing
Media Technologies
Reflection (flip)
B.Sc. (Hons) Multimedia Computing
Media Technologies
Skewing
B.Sc. (Hons) Multimedia Computing
Media Technologies
Freeform (distort)
B.Sc. (Hons) Multimedia Computing
Media Technologies
Compositing Images
B.Sc. (Hons) Multimedia Computing
Media Technologies
Compositing Images
B.Sc. (Hons) Multimedia Computing
Media Technologies
Compositing Images
B.Sc. (Hons) Multimedia Computing
Media Technologies
