Pixels
Last week: Why do humans use denary instead of binary?
Extension:
Convert the following binary numbers to denary:
00000111
10000001
Onderdelen in deze les
Last week: Why do humans use denary instead of binary?
Extension:
Convert the following binary numbers to denary:
00000111
10000001
Learning objectives
Strengthening: Identify why images are made using pixels
Excelling: Create your own pixel art.
Pixels
Images are made up of bits of data called pixels.
Each pixel is assigned a binary number that gives it a colour
The more pixels we have the better quality the image is.
Pixels
Images are made up of bits of data called pixels. Each pixel is assigned a binary number that gives it a colour. The combination of pixels creates the whole image. The more pixels we have the better quality the image is.
The number of pixels is called the resolution. The resolution of an image is calculated the same way as the area of a square:
width * height
12 * 19 =
resolution of
What are images made of?
Data packets
Bytes
Bits
Pixels
What determines the quality of an image?
Image size
Number of pixels
File format
Colour depth
How is resolution calculated?
Width - height
Height / width
Width * height
Height + width
Each pixel is assigned a value
White = 0
Purple = 1
Instructions:
Create new picture on Piskel that you want to make, You can draw anything appropriate, each pixel must have colour in it and you can only use 4 colours.
