Understanding Digital Image Formats

The video tutorial covers the properties and formats of static image files, focusing on bitmap and vector images. Bitmap images are made of pixels, while vector images use mathematical paths. The tutorial explains pixel dimensions, resolution (DPI and PPI), and their impact on image quality and file size. It also discusses various bitmap formats like TIFF, JPEG, GIF, and PNG, and vector formats such as SVG, EPS, and PDF, highlighting their uses, benefits, and limitations.

What is a key characteristic of bitmap images?

• They are composed of mathematical equations.

• They are not affected by pixel dimensions.

• They consist of numerous individual color pixels.

• They use flat colors or basic gradients.

How do vector images differ from bitmap images?

• They are always larger in file size.

• They use mathematical calculations to define shapes.

• They cannot be resized without losing quality.

• They rely on pixel grids.

What does a higher pixel dimension in bitmap images usually indicate?

• Lower image quality

• Faster loading time

• Better image quality

• Smaller file size

What is the primary use of DPI in image resolution?

• For increasing color depth

• For reducing file size

• For printing

• For screen display

Which bitmap format is known for being lossless and suitable for high-quality printing?

• PNG

• JPEG

• GIF

• TIFF

What is a limitation of the GIF format?

• It cannot be used for animations.

• It does not support transparency.

• It is not compatible with web browsers.

• It is limited to 256 colors.

Which vector format is commonly used for web graphics and supports animation?

• SVG

• EPS

• TIFF

• PDF

What is a drawback of the EPS format?

• It has excellent compression capabilities.

• It is not supported by web browsers.

• It cannot contain raster data.

• It is optimized for large-scale printing.

Why is understanding image formats important?

• To optimize image quality and file size

• To increase file size

• To reduce color depth

• To eliminate the need for compression

What should be considered when working with images to achieve the best results?

• Only the resolution

• Pixel dimensions, resolution, and format

• Only the pixel dimensions

• Only the file format