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What is a pixel, what shape does it have and what are its characteristics (what information does it store)?
Picture Element
Acronym that designates the smallest unit that can be represented on the monitor or in the output by the printer.
It is shaped like a square
Unit of information, but not a unit of measure, so it does not have a specific size
A pixel can be very small (1 millimeter) or very large (1 meter).
Characteristics:
* Position
* Colour
Mention some characteristics of HEIC files
•High Efficiency Image Format
•Apple format
•Supports transparencies
The application of modern, advanced compression methods makes it possible to create digital photos in a smaller size, while preserving a higher image quality than its JPEG alternative.
What happens if we make a bitmap image bigger? (What term do we commonly use for this?
When modifying size it is deformed (pixelate), since they are designed for a certain size, losing quality if their dimensions are modified
What does RGB stands for and what is it used for?
Red, Green, Blue
RGB is used in digital applications, only for screens
What is the resolution of an image?
Units to measure the resolution of an image
The term resolution can be used to describe the actual size of the pixels.
number of pixels per inch
Units can be:
ppi (pixels per inch)
ppi (pixels per inch)
dpi (dots per inch)
Mention 2 characteristics of the webp format
• Image for Internet management, whose objective is the fast loading of web pages.
•Developed by Google
•Allows you to compress the size with loss or without loss.
•Allows animation and transparency
•Images are 30% smaller than JPG and PNG
Mention 2 characteristics of the JPG image format
Joint Photographer Experts Group
Causes loss in image quality.
The higher the compression value, the lower the quality of the image.
It has a very high compression factor.
Recommended for photographs. It is the most common format, present in almost all digital cameras.
Mention 2 characteristics of Bitmap images
Realistic images and complex drawings that require fine details.
The more colors the image can have, the higher the final quality it will have and the more information it will need to store.
They are made up of pixels that are assigned their own color and luminance value, in such a way that their grouping creates the illusion of a continuous tone image.
Mention 2 characteristics of the PNG image format
Portable Network Graphics
Graphic format increasingly used instead of GIF with higher quality.
Displays correctly in browsers
It allows a high compression, without loss of information.
Up to 16.7 million colors.
Allow transparency.
What is the main use of vector images?
Logo design / graphic design
What happens if we make a vector image larger than its original size? Why?
Changing the image size does not affect the quality, as it is recalculated using mathematical formulas
Name two characteristics of vector images.
A vector is a line that is described by the location of its endpoints.
Vector graphics use mathematical formulas to recreate the original image, taking some points of the image as references to build the rest.
They are simpler than bitmap graphics.
Mention 2 characteristics of the GIF image format
Graphic Interchange Format
It can only represent 256 colors (8 bits)
Used to display graphics or images in documents on the web. Used for creating animations.
Mention 2 characteristics of the BMP image format
Windows standard format
You can save images that are 24-bit (16.7 million colors), 8-bit (256 colors), and less.
BMP files are usually not compressed and therefore not very suitable for transfer over the Internet.
What does CMYK stands for and what is it used for?
Cian, Magenta, Yellow, BlackIs used for printed materiales. printing machine