Understanding Image Representation in Computer Systems

The video tutorial explains how images are represented in computer systems using binary. It covers two main methods: bitmap and vector. Bitmap images are made of pixels, each with a binary value, while vector images store mathematical instructions to draw shapes. The video focuses on bitmap images, detailing how they are stored, the role of metadata, and the impact of color depth on file size and quality. It concludes with a recap of key concepts, emphasizing the importance of understanding binary storage for exams.

What are the two main ways of storing images in binary?

• Bitmap and Raster

• Raster and Pixel

• Vector and Raster

• Bitmap and Vector

In a bitmap image, what is each colored square called?

• Shape

• Coordinate

• Vector

• Pixel

What binary value is typically assigned to the color black in a simple black and white bitmap image?

• 10

• 11

• 1

• 0

What additional data is needed to reconstruct an image from raw binary data?

• Metadata

• File format

• File size

• Color palette

How many colors can be represented using two bits per pixel?

• 2

• 4

• 8

• 16

What is the term used to describe the number of bits used for each pixel?

• Bit rate

• Color depth

• Pixel depth

• Resolution

How many colors can be represented in a 24-bit color image?

• 16 thousand

• 1024

• 256

• 16 million

What is the hexadecimal representation used for in 24-bit color images?

• To enhance image quality

• To reduce file size

• To increase color depth

• To simplify binary representation

What is the primary difference between bitmap and vector images?

• Bitmap images are used for technical drawings, while vector images are used for photographs.

• Bitmap images are stored in binary, while vector images are not.

• Bitmap images are larger in size, while vector images are smaller.

• Bitmap images are made of pixels, while vector images store mathematical instructions.

What is the formula to calculate the number of colors that can be represented by a given number of bits per pixel?

• 2 to the power of n

• n to the power of 2

• 2 times n

• n divided by 2