What is an Image File?
Image files store visual data in various formats like JPEG, PNG, and GIF.
These formats determine how data is compressed and displayed visually.
The data consists of pixel values, tiny dots with different RGB values (Red, Green, Blue).
The size of an image file depends on how many pixels are in that file.
To store the data for each pixel, 3 bytes (24 zeros or ones) are generally used.
When an image is large, it may have millions of pixels.
Storing all the information for such an image on a computer or any device will take millions of bytes.
Optimizing image files can help reduce the size, compress the data, and convert the image file to KB for efficient storage and faster loading times.
Different Image Formats
Explore various image file formats like JPEG, PNG, GIF, and WebP, and understand their unique characteristics and use cases. Mainly, JPEG, PNG, and JPG are standard formats for image files.
How to Reduce Image File Size?
One effective method to reduce the size of an image file without resizing it is through compression.
While compressing can decrease the file size, increasing compression may affect image quality by losing more data.
Another approach is to resize the photo, which reduces the pixels needed to store the image without compromising quality.
Modern cellphones and cameras often capture photos with over 6 million pixels, whereas screens on cellphones, tablets, notebooks, or TVs typically display only around 1.5 million pixels.
This means you often see a resized version of the image on these screens unless you print the full image.
