1. photoshop is an image processing software, especially bitmap processing software. The so-called bitmap is a picture composed of pixels, that is, a picture is composed of small squares of different colors. Any complex picture can be decomposed into a certain number of color squares (such as Leonardo da Vinci's Mona Lisa, as long as you enlarge it big enough, you can see that it is composed of countless small squares of different colors, just like the color Massek). In photoshop, you can even edit any single color square;
coreldraw is a vector graph processing software. The so-called vector, its pattern is determined by shape, unlike bitmap, which can be divided into squares and is not limited by size. For example, a solid filled circle is still composed of squares in the in-situ picture, and a circle with a filling concept in the vector picture. You can change the size of the circle at will, no matter how round it is or how smooth and perfect it is, the filling color inside is still uniform. But in photoshop, if you change the size, the number of squares also means change, and at the same time, the boundaries may appear jagged.
2. photoshop is suitable for editing and processing pictures, especially pictures like photos, that is, adjusting the color of pictures, editing local positions, cutting pictures, redefining the size of pictures, etc. (of course, there are various special effects); Coreldraw is suitable for typesetting text and pictures, creating vector patterns, etc. And output companies all use coreldraw software to output (for example, if you want to print a brochure, you can only typeset it with coreldraw instead of photoshop. Of course, the pictures in it may be processed with photoshop, but in the end, you have to arrange it with coreldraw to make films).
from the function point of view, Photoshop can be divided into image editing, image synthesis, color correction and special effects production.
Image editing is the basis of image processing, which can make various transformations on images, such as enlargement, reduction, rotation, tilt, mirror image and perspective. You can also copy, remove spots, repair, and modify the image damage. This is very useful in wedding photography and portrait processing. It can remove the dissatisfied parts of the portrait and beautify it, and get very satisfactory results.
Image synthesis is to combine several images into a complete image with clear meaning through layer manipulation and tool application, which is the only way for art design. The drawing tools provided by photoshop make foreign images and ideas well integrated, making it possible to make the image synthesis seamless.
Tone color correction is one of the powerful functions in photoshop, which can adjust and correct the color of the image conveniently and quickly, and can also switch between different colors to meet the application of the image in different fields, such as web design, printing, multimedia and so on.
in photoshop, the production of special effects is mainly completed by the comprehensive application of filters, channels and tools. Including the creation of special effects of images and the production of special effects words, such as oil painting, relief painting, plaster painting, sketch and other commonly used traditional art skills can be completed by photoshop special effects. And the production of various special words is the reason why many art designers are keen on photoshop research.
CorelDraw is a product of Corel Software Company in Canada. It is a drawing and typesetting software based on vector diagram.
it is widely used in many fields such as trademark design, logo making, model drawing, illustration drawing, typesetting and color separation output. As a powerful drawing software, its popularity can be illustrated by the following facts: CorelDraw is installed in almost all PCs used for commercial design and art design!
CorelDraw interface is friendly in design and meticulous in operation. It provides designers with a complete set of drawing tools, including circles, rectangles, polygons, squares and spirals, and cooperates with shaping tools to make more changes to various basics, such as rounded rectangles, arcs, sectors and stars. At the same time, special brushes such as pressure pens, writing pens, sprayers, etc. are also provided to make full use of the characteristics of large amount of information processing and high random control ability of computers.
for the convenience of design, CorelDraw provides a complete set of graphic precise positioning and deformation control schemes. This brings great convenience to the design of trademarks, signs and other designs that need accurate dimensions.
color is the focus of visual communication in art design; CorelDraw's solid color filling provides various modes of color matching schemes, the application of spot colors, gradient, bitmap and shading filling, and the color change and operation mode are beyond the reach of other software. CorelDraw's color sheet management scheme makes display, printing and printing achieve color consistency.
CorelDraw's word processing and image input and output constitute the typesetting function. Word processing is by far the best of all software. It supports the input and output of most image formats. You can exchange files with other software almost unimpeded. Therefore, most of those who do art design with PC are typeset directly in CorelDraw, and then output in color separation.