Digital image processing picture materials-basic steps of digital image processing

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Image: Basic steps of digital image processing

1. Image acquisition is the first step of digital image processing. Image acquisition is as simple as being given an image in digital form. Typically, the image acquisition stage includes image preprocessing, such as image scaling.

2. Image enhancement is to operate on an image to make the result more suitable for processing in a specific application than the original image. The word "specific" is important because enhancement technology is based on problem-oriented methods. For example, a method that is very useful for enhancing X-ray images may not be a good method for enhancing satellite images acquired in the infrared band of the electromagnetic spectrum. There is no general theory of image enhancement methods. There are many image enhancement methods, and special cases are treated specially.

3. Image restoration is also a processing area that improves the appearance of images. Unlike image enhancement, which is subjective, image restoration is objective; restoration techniques tend to be based on mathematical or probabilistic models of image degradation. Enhancement is based on subjective preferences for what is a good enhancement.

4. Color image processing, Chapter 6 covers many color models and basic concepts of digital domain color processing. Color is also the basis for extracting areas of interest in images.

5. Wavelet is the basis for describing images at different resolutions. Wavelets are used in this book for image data compression and pyramid representation, where the image is successfully subdivided into smaller regions.

6. Compression refers to the process of reducing image storage or reducing image bandwidth. The Internet is characterized by a large amount of image content. For example, the jpg file extension is used in the image compression standard of jpeg. Images in jpeg format can achieve better image quality with minimal disk space.

7. Morphological processing involves tools for extracting image components that are useful in representing and describing shapes. This chapter will start with the conversion from output image processing to output image attribute processing.

8. The segmentation process divides an image into its components or objects. Generally, automatic segmentation is one of the most difficult tasks in digital image processing. Successfully segmenting the target one by one is a difficult segmentation process. Generally, the more accurate the segmentation, the more successful the recognition.

9. Representation and description. Choosing a representation is only part of converting the original data into a form suitable for subsequent processing by the computer. In order to describe the data so that the features of interest are more apparent, a method must be determined. Description, also known as feature selection, involves extracting features that can obtain some quantitative information of interest or be the basis for distinguishing a group of targets from other targets.

10. Target recognition is the process of assigning a mark (such as "vehicle") to the target based on the description of the target.

About the basic steps of digital image processing, Qingteng editor will share with you here. If you have a strong interest in page layout, website design, graphics processing, etc., I hope this article can be helpful to you. If you want to know more about graphic design materials and techniques, you can click on other articles on this site to learn. How many image processing software are there on the market now (similar to N8)?

Adobe Series

1AdobePhotoshop Simplified Chinese software category: Image processing Photoshop is a famous image processing software produced by the American ADOBE company. It has very powerful functions when retouching and processing photographic works and paintings. 2AdobeIllustratorCSv11AdobeIllustrator is a powerful and complete drawing software package designed for both output and web page production. This professional drawing program integrates functions Powerful vector drawing tools, complete PostScript output, and tight integration with Photoshop or other Adobe family software. Version 10 adds new drawing and automation benefits such as Arc, RectangularGrid, and PolarGrid tools; increased editing flexibility and logos (editing primary objects or image copies). You can use brushes and other creative tools on the toolbar such as merge, data-driven coordinates, etc. to help you create templates that are connected to the database. The new Illustrator also offers more web production capabilities, including cropping images and support for variable vector graphics (SVG) enhancements. 3FireworksMX2004 Simplified Chinese version Software language: Simplified Chinese Software category: Image processing 4AutoCAD design related software 1.CorelDRAW2.CorelPainter is the ultimate choice of digital sketching and painting tools. It is an extremely excellent natural-like painting software, with comprehensive and realistic imitation Natural brush. It is specially developed for digital artists, illustrators and photographers who desire to pursue free creativity and need digital tools to simulate traditional paintings.

It can replicate the effects of Natural Media through digital means. It is the best product in its class and has been unanimously praised by the industry. CorelPainter is widely used in animation design, architectural renderings, artistic illustrations, etc. The most important thing to realize is that this software is best equipped with a digital tablet. Although you can also use a mouse to draw, it will be tiring in general and definitely not as smooth as handwriting. The current common versions are 6.0, 7.0, 8.0, IX, and X, and the latest version is XI.

Application management software

picasa

Google's free image management tool allows you to make advanced modifications with simple one-click corrections, allowing you to Get stunning results at your fingertips. Moreover, Picasa also allows you to quickly share your pictures. You can send pictures by email, print pictures at home, create gift CDs, and even post pictures to your own blog.

Domestic popular software

Color Shadow

In the current field of image processing, some software is either too large and professional, which discourages beginners and makes professionals inefficient. ; Or it is too stupid, its functions are too simple, it is difficult to effectively display creativity, and product quality and processing speed are also uneven. The launch of Caiying perfectly resolves this contradiction of "having your cake and eat it too". Caiying is China's No. 1 image processing software. It is a new generation of high-quality, high-speed digital image processing software with the most powerful functions and the most user-friendly features in China. Target groups: Ordinary home users, photography enthusiasts, professionals who need fast image processing, and graphic designers Software features: 1. Many original new digital image processing engine technologies bring perfect quality: Caiying’s unique “PerfectImage” The digital image processing engine makes image processing quality and restoration capabilities superior to others, and the processing speed is even faster. 2. The pinnacle of humanized design, the "OnePanel" interface technology eliminates the need to switch and set settings in numerous pop-up windows like traditional software. Caiying allows almost all settings to be made directly without pop-up windows. What you see on the pictures is what you get. 3. Concurrent processing of multiple image windows can significantly reduce the complexity of operations in batch processing, mutual comparison, and repeated cutout of multiple images. 4. The most user-friendly professional cutout technology. 5. It has a high-quality material library. 6. Art composite photos, mask photos, and powerful cutout synthesis production. 7. Supports the most complete digital darkroom effects and the most complete adjustment and repair functions. 8. Fun decoration overlay function. 9. Real word art effect. 10. A richer set of image processing solutions.

Meitu Xiuxiu

Meitu Xiuxiu (also known as Meitu Master) is a new generation of non-mainstream picture processing software that can produce non-mainstream pictures in a short time. , non-mainstream flash pictures, QQ avatars, QQ space pictures,

KeNiu Image

KeNiu Image has thousands of embedded calendars, baby photos, photo stickers, wedding photos, non-mainstream photos Scenes can be easily created without any knowledge of PS skills. It supports multi-picture scenes. Multiple photos can be embedded in one calendar, wedding dress, and baby photo, and the production effect is very cool. The software integrates super portrait beauty and studio special effects, smart portrait soft focus beauty, and presents a hazy artistic feeling in 1 second, such as four major studio special effects: cold blue, cold green, warm yellow, and retro, making you cool, beautiful, and amorous. 6 automatic repair capabilities such as fill light and softness, dozens of alternative effects such as sketch, black and white, nostalgia, light makeup and heavy makeup are always suitable and elegant. Plus powerful text and watermark editing, the text can support vertical arrangement and arbitrary rotation, making editing more convenient , make couplets and add comments. It has a large number of watermark options to add to your pictures to show your personality and make them unique. The important feature is to provide QQ avatars, MSN avatars, Kaixin avatars and online photo album specifications, and set the most appropriate picture brightness, contrast, hue, color scale, color balance in one step, professional design, and the best effect! It can be easily managed on the computer All photos in your computer will be comprehensively scanned, automatically organized according to date and folder order, intelligently classified, and folders named with easy-to-recognize names to find the desired picture directory at a glance.

Light and Shadow Magic Hand

Light and Shadow Magic Hand is a popular image processing software in China! It was rated as the most popular in 2007 by many authoritative media and websites such as "Computer News", Tianji, PCHOME, etc. Best image processing software. "Light and Shadow Magic Hand" is a software for improving the quality of digital photos and processing effects. Light and shadow magic hand (nEOiMAGING) has a cool name. Just like it does when processing digital images and photos - fast, practical and easy to use. Light and Shadow Magic Hand can meet the needs of most photo post-processing, and the batch processing function is very powerful. It does not require rewriting the registry. If you are not satisfied with it, you can restore your previous usage habits at any time.

isee

A comprehensive digital image browsing and processing tool, it not only has powerful functions comparable to ACDSee, but also has a large number of image entertainment applications tailored for Chinese users. Let your pictures move and leave more beautiful memories!

Dynamic picture processing software

UleadGIFAnimatorUleadGifAnimator is a simple, fast, flexible and powerful GIF animation editing software . At the same time, it is also a good web design auxiliary tool, and can also be used as a Photoshop plug-in. The rich and powerful built-in animation options allow us to more easily create GIF animations that meet the requirements. It is the earliest animated GIF production tool released by Ulead in 1992. gifmoviegearGIFMovieGear is one of the best tools for ordinary users to create animated GIF files. It is not only powerful, but also has an intuitive interface and easy operation. Compared with the huge As a professional GIF animation production software, GIFMovieGear makes it easier for ordinary users to get started and use it more conveniently.