L2 - Colour Image Representation

Multiple Choice

What is Sampling?

• Sampling is the process of converting an analog audio signal into a digital format by taking measurements of amplitude.

• Sampling refers to the process of amplifying audio signals for better clarity.
• Sampling is the technique of mixing multiple audio tracks together.
• Sampling is the method of recording live performances without any modifications.

Multiple Choice

What does RGB means?

• Blue, Green, Purple
• Red, Yellow, Blue
• Red, Green, Yellow
• Red, Green, Blue

Multiple Choice

How does computer represent images

• Images are represented as a series of text characters.
• Images are stored as audio files in a computer.
• Images are displayed using only black and white colors.
• Images are represented as a grid of pixels with color values in binary format.

Multiple Choice

How does RGB Works?

• RGB stands for red, green, and yellow light.
• RGB uses only red and green light to create colors.
• RGB works by combining red, green, and blue light in varying intensities to create spectrum of colours.

• RGB is a method for mixing paint colors.

Multiple Choice

What are the RGB values for the color red, and what do they represent?

• (255, 255, 255) – All colors at full intensity

• (0, 255, 0) – Only green is at full intensity

• (255, 0, 0) – Only red is at full intensity

• (0, 0, 255) – Only blue is at full intensity

Multiple Choice

Which RGB values represent the color blue at full intensity?

• (0, 0, 255)

• (255, 0, 0)

• (0, 255, 0)

• (255, 255, 255)

Multiple Choice

What does the RGB value (0, 0, 0) represent?

• All colors at full intensity

• Only red is at full intensity

• All colors are off

• Only green is at full intensity

Multiple Choice

What is Bit Depth

• Bit depth indicates the file size of an image.
• Bit depth is the number of bits used to represent the colour of a pixel in digital images.

• Bit depth is the number of pixels in an image.
• Bit depth refers to the resolution of an image.

Multiple Choice

What is image Resolutions?

• Image resolution is the detail an image holds, measured in pixels.
• Image resolution is the format in which an image is saved.
• Image resolution is the size of the image file in megabytes.
• Image resolution refers to the color depth of an image.

Multiple Choice

What is the formula for calculating resolution?

• Height x Depth
• Width + Height
• Width - Height
• Width x Height

Multiple Choice

How do you calculation the file size of an image?

• File Size = Width + Height + Color Depth
• File Size (in bytes) = Width x Height x Color Depth
• File Size = Width x Height x Color Depth x 8
• File Size (in bytes) = Width x Height x Color Depth / 8

Multiple Choice

What is image size representation?

• Image size representation refers to the file format of an image.
• Image size representation is the color depth of an image.
• Image size representation is the dimensions of an image in pixels, often given as width x height.
• Image size representation indicates the compression level of an image.

Multiple Choice

What is the formula for calculating image size?

• Image Size = Width + Height + Color Depth
• Image Size = Width x Height
• Image Size = Width x Height x Color Depth x 8
• Image Size = Width x Height x Colour Depth

Multiple Choice

An image has a resolution of 1024 × 768 pixels and a 16-bit colour depth. What is the image size in bytes?

• 1,572,864 bytes

• 12,582,912 bytes

• 786,432 bytes

• 1,572,864 bits

Multiple Choice

An image has a resolution of 800 × 600 pixels and uses 8-bit colour depth. If the colour depth is increased to 24-bit, how does the file size change?

• Remains the same

• Increases 2 times

• Increases 3 times

• Decreases

Multiple Choice

An image has a size of 16,777,216 bytes and a 32-bit colour depth. What is the image resolution?

• 1920 × 1080

• 1024 × 1024

• 4096 × 4096

• 2048 × 2048

Multiple Choice

Which Image Uses the Most Storage?

• 600 × 400 pixels, 8-bit colour depth

• 1280 × 720 pixels, 16-bit colour depth

• 1024 × 768 pixels, 24-bit colour depth

• 1920 × 1080 pixels, 8-bit colour depth

Multiple Choice

What is a trade off when representation images?

• The trade-off between color depth and resolution.
• The trade-off between image quality and file size.
• The trade-off between editing capabilities and compression type.
• The trade-off between image format and printing speed.