Obviously, duplicate files occupy considerable space on the hard disk, and from them should be promptly and regularly to get rid of. Duplicate files have a variety of formats, and in this article we will talk about graphic file formats, and how what criteria should be used in removing duplicate images in the event that a program performs delete duplicate images (for example, provided here duplicate Image Remover Free), found similar images in different formats.
Most PC users probably know that the image formats, there are many. Jpg, png, bmp, tiff, psd, dwg - all image formats, each of which has its own properties and performs its specific task. In fact, these formats are much more, but all this diversity can be divided into two groups - raster formats and formats of vector graphics. What is the fundamental difference between them, and in what format - raster or vector - best to create the desired image of us?
A bitmap consists of a grid of indivisible units - pixels. Each pixel has a different color, brightness and position. The human eye perceives the combination of these points as a single figure. The smaller the pixels, the better and more realistic picture is obtained. Obviously, the quality of the image pattern formed in raster graphics, depending on the screen resolution, which can be seen on this picture. The main disadvantage of bitmap graphics is that you can not change the size of the picture without compromising image quality. That is, the more we increase such an image, the greater the size of the pixels, and the image becomes more rough and unclear. Another disadvantage of the raster graphics in that the size of these files is independent of the complexity of design, and depends only on the area of the pattern, color depth and resolution. Thus, no matter what the picture - a couple of squares and mountain landscape - the size of the pictures is the same with the concurrence of the above factors. Examples of raster formats are the formats jpg, png, tiff, gif. The most common editors working with raster graphics - it is Adobe Photoshop.
Vector image consists of objects, each of which is described by a mathematical formula. File this image consists of information about the positions of these points and the lines passing through the control points. Thus, prior to display on the screen images created in a vector format, each piece is carefully calculated computer. It follows that the main advantage of vector graphics is that such an image can arbitrarily increase or decrease - the picture quality will not suffer. However, in this format, you can create a fairly primitive image. Almost impossible to realistically display in vector graphics landscape with a variety of elements and different colors and shades, as it will take a great variety of geometric shapes and mathematical formulas. Therefore, vector graphics is mainly used for creating various text layouts, logos, drawings, diagrams and so on. An example of a format created in the vector graphics formats are cdr, dwg, pdf. The most common graphic editors for such images is CorelDraw.