ETS01G Lesson 3 (2nd Quarter)

Vector Image Files

These file types are ideal for resizing images, as they are ondlessly scalabia.

Raster Image Files

Its number of pixels and number of pixels per inch (PPI) or dots per inch (DPI) determines the image resolution.

High Resolution Files

Images that have more PPI or DPI have a higher resolution, although this doesn't always guarantee the image will appear crisp and clean.

Low-Resolution Files

Images with fewer pixels or that are stretched will often appear blurry.

Lossy

This is a filter that eliminates some of the data. This will degrade the image, so you'll have to be careful of how much to reduce the image.

Lossless

This is a filter that compresses the data. This doesn't reduce the quality but it will require the images to be uncompressed before they can be rendered.

Data Compression

It is a technique in which the size of data is reduced without information.

JPEG - Joints Photographic Experts Group

It is a raster image file format with lossy compressions, it's the best choice for nearly all online images and for some printed photographs.

PNG - Portable Network Graphics

It is a raster graphics format that supports lossless compression, transporency and millions of colors.

GIF - Graphics Interchange Format

It is a lightweight image file format developed specifically to provide better lossless and lossy compression of images and deal for small graphics on websites and in emails.

TIFF - Tagged Image File Format

It is a raster image format for high-resolution printing, including art photography and other fine artwork.

BMP - Bitmap

It is an uncompressed raster file format that is mostly outdated but maps individual pixels with little to no compression and is suited well for storing and displaying high-quality digital images.

PDF - Portable Document Format

It isn't actualy an image file format, it is a raster graphics format that supports lossless compression, maintaining detail and contrast between colors

HEIF - High Efficiency Image File Format

It's a raster image format developed by the tearn behind the MPEG video format to be a direct competitor to JPEG.

SVG - Scalable Vector Graphics

It was developed by W3C as a markup language to render two-dimensional images right within the browser.

EPS - Encapsulated Postscript

It is a vector image file used for storing Illustrations in Adobe Illustrator and other illustration softwore like CorelDraw.

Raw Image Format

These are the file types a digital camera uses to store full-quality images for later post-production and editing. It is the highest quality but have unreasonably large file sizes of up to hundreds of megabytes.