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Form element – input type=”image”

The form can be submitted to server by standard button input type=”submit”, or by help of pictorial element input type=”image”. If you want to have the same look and feel of submit buttons across all browsers and systems, it is necessary to use the form element image. Disadvantage of the image element is the lack of animation when clicked, so it does Read the rest of this entry

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Image file formats

There are so many image/graphic formats available in the modern day but only few of them are widely used depending on user’s need.Mostly used formats are PNG, GIF and JPEG. Before talking about image formats, it is necessary to have an idea about color depths. There are color depths(palettes) with Indexed color and Direct color. Read the rest of this entry

Image compression techniques

Usually images take a large amount of space to store and therefore the use of bandwidth also high for the transmission. In order to avoid this (reduce storage space & increase transmission speed) different image compression methods can be used.

How an Image is stored ? 

image_store

Basically, the image compression methods can be classified into Read the rest of this entry