Digital image

Digital Image

A digital image is a visual representation of data in binary format, made up of pixels that form the image. Each pixel is assigned a specific color, resulting in a color or grayscale image.

Resolution

The resolution of a digital image refers to the number of pixels that make up the image. The higher the resolution, the higher the image quality and the more detail can be seen.

File formats

There are various file formats for digital images, such as JPEG, PNG, GIF and TIFF. Each format has its own characteristics and is best suited to different types of images.

Image editing

Editing digital images involves using specific software, such as Adobe Photoshop, to change aspects of the image, such as brightness, contrast, colors and sharpness.

Image compression

Image compression is the process of reducing the file size of an image without significantly compromising visual quality. This is important for optimizing the loading time of web pages.

Pixel

The pixel is the smallest unit of a digital image, being an individual point that makes up the image. The greater the number of pixels, the higher the resolution and quality of the image.

Color Depth

The color depth of a digital image refers to the number of different colors that can be represented in each pixel. The greater the color depth, the more colors can be displayed in the image.

Pixelization

Pixelization occurs when an image is enlarged beyond its native resolution, resulting in a pixelated, low-quality display. This can be corrected with interpolation and smoothing techniques.

Metadata

The metadata of a digital image is additional information incorporated into the image file, such as creation date, author, location and camera settings. This data is useful for organizing and identifying images.

Image Enhancement

Image enhancement is the process of adjusting the brightness, contrast and sharpness levels of an image to improve its visual quality. This can be done manually or with the use of filters and editing tools.