2_Encoding_graphic_files_Presentation_2_variant_2

pptx
10.05.2020

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2_Encoding_graphic_files_Presentation_2_variant_2.pptx

Knowledge update

How to convert from binary system to decimal number system and vice versa?

Black and white image
0 - white color
1 - black color

Encoding graphic filesLesson objectives : 10.3.1.1 present raster images in binary

Assessment criteria

- encodes the bitmap in binary code (1 and 0) on paper,
- explains the process of encoding a bitmap, showing the knowledge of different image compression algorithms
- explains the difference between analog and digital presentation of information, gives examples

Research

The difference between the formats of graphic files jpeg, bmp, png, gif on the principle of coding

Whole group discussion
Time to complete - 10 minutes

Task for compliance

Find the match between the format and its description

Justify your answer

Time to complete - 5 minutes

Questions to video
Ways to present graphic information?
How is graphic information converted from analog to graphic form?
What is a pixel?

Watching video

https://www.youtube.com/watch?v=uaV2RuAJTjQ

Encoding raster graphic information in decimal number system

Decimal code	Binary code
48	0000110000
120	0001111000
252	0011111100
510	0111111110
1023	1111111111
390	0110000110



510	0111111110

Trailing zeros

Practical work
Time to complete 5 minutes

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