Hello can you help me please it's very urgent. Thank you in advance :)
A digital camera is used that takes pictures with a resolution of 2536×1902
pixels with a colour depth of 24 bits (8 bits per colour).
Displaying photographs on the screen
1.a. There are 3 bytes per pixel. Calculate the file size in megabytes if this image is saved in an uncompressed format such as ppm. The file size, rounded to the nearest tenth, is ..........
MB.
2. We wish to send photographs by e-mail to a recipient who has only an 845×634
.
a. Calculate the file size that can be obtained by reducing the resolution of the photographs to that of the screen.
The size of the reduced file is then .........
MB.
b. What is the reduction factor obtained?
The file size has been divided by Answer ...........
Printing the photographs
A printer with a resolution of 300 dpi (dots per inch) is available. We want to use this resolution so that no pixels appear on the printed photographs.
1.a. Calculate the size of paper to use to obtain 300 dpi prints.
The width of the paper: Answer ...........
and the height of the paper: Answer ..........
b. If you print on A4 paper, will the quality be sufficient? Answer
2. The recipient of the photos - sent at a reduced resolution of 845×634
- wants to print them on 12 cm × 9 cm.
What is the resolution of the image in dots per inch with this print size?
The resolution is Answer ......... dpi.
