Brightness Adjustment

DPI – Dots Per Inch 

• DPI refers to the number of ink dots a printer places in a line within one inch.
• It determines the resolution or quality of printed output.
• Example: A printer with 600 DPI prints 600 dots in every inch of the paper.

PPI – Pixels Per Inch

• PPI refers to the number of pixels present per inch of a digital image or display screen.
• It determines the clarity and sharpness of an image on a screen.
• Example: A display with 300 PPI means there are 300 pixels within every inch of the screen.

Brightening an image :

Step 1 : Open the Brightness Tool.

• Click on the "Colours" menu in your editing software.
• Choose "Brightness-Contrast" from the list.

Step 2 : Adjust the Brightness

• Move the brightness slider to make the picture brighter or darker.
• When you're happy with how it looks, click "OK" to apply the changes.

Step 3 : See the Difference

• The first photo shows the image before making it brighter; it's a bit dark.
• The second photo shows the image after making it brighter; it's clearer and more colourful.