How images are stored (pixels, resolution) in Intro to Computing - Flowchart Walkthrough

Process Overview

Images on computers are stored as tiny dots called pixels. Each pixel has a color value. The resolution tells us how many pixels make up the image width and height, affecting image clarity.

Flowchart

Image captured or created

↓

Divide image into pixels

Yes No↓

Assign color value

↓

Store pixel color data

No Yes↓

Move to next pixel

↓

Repeat process

This flowchart shows how an image is stored by dividing it into pixels, assigning color values to each pixel, and storing this data until the whole image is processed.

Step-by-Step Trace - 8 Steps

Step 1: Start with an image to store

Step 2: Divide the image into pixels

Step 3: Check if pixel color is known

Step 4: Assign color value to pixel

Step 5: Store pixel color data

Step 6: Check if all pixels processed

Step 7: Move to next pixel and repeat

Step 8: Finish when all pixels processed

Diagram

Image (Grid of Pixels):
+---+---+---+---+
| R | G | B | R |
+---+---+---+---+
| G | B | R | G |
+---+---+---+---+
| B | R | G | B |
+---+---+---+---+
| R | G | B | R |
+---+---+---+---+

Legend:
R = Red pixel color value
G = Green pixel color value
B = Blue pixel color value

This diagram shows an image as a grid of pixels, each pixel having a color value represented by red, green, or blue components.

Flowchart Quiz - 3 Questions

What is a pixel in an image?

A A tiny dot that holds color information

B A large section of the image

C A file format for images

D A tool to edit images

Key Result

Images are stored by breaking them into pixels, each with a color value, and resolution defines how many pixels form the image.