Quiz On Working With Digital Images

1.

When describing resolution, what do the letters ppi stand for?

Photoshop pixel increments

Photoshop pixel inches

Pixels per inch

Photographic pixel inches

The letters "ppi" stand for "pixels per inch." This term is used to describe the resolution of an image, specifically the number of pixels that are present within one inch of the image. It is a measure of the image's clarity and sharpness, with a higher ppi indicating a higher resolution image. The other options provided, such as "photoshop pixel increments" and "photoshop pixel inches," are not accurate explanations for the acronym "ppi" and are therefore incorrect.

Explanation

The letters "ppi" stand for "pixels per inch." This term is used to describe the resolution of an image, specifically the number of pixels that are present within one inch of the image. It is a measure of the image's clarity and sharpness, with a higher ppi indicating a higher resolution image. The other options provided, such as "photoshop pixel increments" and "photoshop pixel inches," are not accurate explanations for the acronym "ppi" and are therefore incorrect.

2.

https://blogs.mccombs.utexas.edu/the-most/files/2010/06/copypaste.png

If you copy and paste information from the Internet and stick it in to your sketchbook, that's OK because it will just be seen by your tutors.

True

False

Copying other people's published words is stealing, and is not acceptable in education. It is called plagiarism and is taken very seriously.

Explanation

Copying other people's published words is stealing, and is not acceptable in education. It is called plagiarism and is taken very seriously.

3.

Illustrator is a vector-based application, whereas Photoshop is bitmap application. Match the definitions.

Vectors

Bitmaps

Submit

4. File formats can be described as Lossy and Lossless. In essence, this means that when you save and image, it will either be compressed to a smaller file size (lossy) or it will keep all of the information assigned to it and therefore stay at exactly the same file size (lossless). Indicate which of the following are LOSSY file formats.

TIFF

Jpeg

Psd

Ai

Gif

JPEG is a lossy file format. When an image is saved in JPEG format, it undergoes compression which results in a smaller file size. However, this compression also leads to a loss of some image quality. The degree of compression can be adjusted, with higher compression resulting in more loss of quality.

Explanation

JPEG is a lossy file format. When an image is saved in JPEG format, it undergoes compression which results in a smaller file size. However, this compression also leads to a loss of some image quality. The degree of compression can be adjusted, with higher compression resulting in more loss of quality.

5.

You have set up a new, A4 page in Photoshop with a resolution of 300 ppi. You also have open and image which is 10cm by 10cm with a resolution of 150 ppi. What will happen when you drag and drop that image onto your A4 page?

The image will maintain the same dimensions - 10cm x 10cm

The image will shrink to half the size - 5cm x 5cm

The image will expand to double the size - 20cm x 20cm

Image size and resolution are very tricky and difficult to get your head around, but essential to understand so that you can control the quality of your outcomes.
As a general rule, if you wish to maintain the quality of an image then when you double the resolution, your dimensions must halve. If you halve the resolution, the dimensions can double.

Explanation

Image size and resolution are very tricky and difficult to get your head around, but essential to understand so that you can control the quality of your outcomes.
As a general rule, if you wish to maintain the quality of an image then when you double the resolution, your dimensions must halve. If you halve the resolution, the dimensions can double.

6.

In order to get the best quality scan from the A4 flatbed scanners, what should you do before you scan? Select all that apply.

Execute a calibration between the scanner and the computer

Select the appropriate resolution and colour mode

Clean the glass with a soft cloth

Create a contact sheet to check quality

Put light pressure on the top of the scanner to ensure good contact with the glass.

Before scanning with an A4 flatbed scanner, it is recommended to execute a calibration between the scanner and the computer to ensure accurate color reproduction. Additionally, selecting the appropriate resolution and color mode is important to achieve the desired quality of the scan. Cleaning the glass with a soft cloth helps to remove any dust or smudges that can affect the scan's clarity. Finally, putting light pressure on the top of the scanner ensures good contact with the glass, resulting in a better quality scan.

Explanation

Before scanning with an A4 flatbed scanner, it is recommended to execute a calibration between the scanner and the computer to ensure accurate color reproduction. Additionally, selecting the appropriate resolution and color mode is important to achieve the desired quality of the scan. Cleaning the glass with a soft cloth helps to remove any dust or smudges that can affect the scan's clarity. Finally, putting light pressure on the top of the scanner ensures good contact with the glass, resulting in a better quality scan.

Submit

7.

Match the recommended resolution to the intended outcome.

150 ppi

72 ppi

300 ppi

600 ppi

Submit