bitmap image editing b.sc. (hons) multimedia computingmedia technologies

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Bitmap Image Editing B.Sc. (Hons) Multimedia Computing Media Technologies

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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