java image processing library

Android image processing artifact BitmapFun source code analysis As an Android developer, I believe everyone is familiar with the problem of image OOM. There are many open-source projects on image caching and OOM solutions, the well-known ones are Universal_image_loader and Volley, which have been introduced in the p

. crop (area) 76 word.save(path+wordslist?count={'.png ') 77 count + = 178 if count> = len (wordslist): 79 return80 81 82 def getWordsFormImg (imgName, path): 83 png = Image. open (imgName, 'R') 84 img = png. convert ('1') 85 gray = img. split () [0] 86 # first cut out the text area 87 area = (xStart (gray)-1, yStart (gray)-1, xEnd (gray) + 2, yEnd (gray) + 2) 88 img = img. crop (area) 89 getWordsByBlank (img, path) 90 91 def getWrods (): 92 global wo

example: Source image 1 fig red Figure ‑ green figure ‑ blue Algorithm code implementation (Java): See Appendix 1 below Note:When the R, G, and B colors of each pixel of an image are the same, it is a non-color grayscale image.For example: Figure ‑ gray Algorithm code implementation (Java): See Appendix 2 belowAppe

Write android image asynchronously loaded library by yourself (2) In the first article in the "Write android image asynchronously loaded library by yourself" series, I learned how to use ReferenceQueue to implement a memory cache. This article mainly introduces how to control the process and queue when downloading many

This article mainly introduces how Python obtains the main color of the image through PIL and compares it with the color Library. The example shows how Python operates the image through the PIL module, which has some reference value, for more information about how to obtain the main color of an image through PIL and co

1. This is a thumbnail class library. It is an open-source image thumbnail library that can be used to generate and implement various complex image thumbnails.2. Usage Here is a simple and practical description about it. The English is relatively simple and will not be translated:Basic-Usage3. API Here is a list of Api

Applicable environment: The CodeIgniter framework is not used, however, to introduce a fully functional image processing class CodeIgniter image processing class, you can complete the following operations to adjust the image size, create a thumbnail, crop an

This article mainly and everyone to share the PHP image graphics operation of the basic use of GD Library tutorial, I hope to help everyone. 1>GD Library Introduction GD refers to the graphic device,php of the GD library is used to process graphics extension library,

Php uploads images to generate thumbnails (GD Library ),. Php uploads an image to generate a thumbnail (GD Library). First, let's take a simple php Upload image to generate a thumbnail for your reference, the specific content is as follows: phpfunction php uploads an image t

GPL libraryHttp://www.ph.tn.tudelft.nl/~klamer/cppima.htmlCppima is a library of C + + functions for image processing. Here is a more comprehensive documentation of its library functions, and of course you can download the zipped gzip package, which contains documents in Texinfo format.http://iraf.noao.edu/Welcome to

have a good compression ratio in VC, it will undoubtedly be very attractive.Ii. Design IdeasAlthough there are some Active X controls for operations, processing JPEG, GIF, and other formats of images, it is not very convenient to use in general. I have explored through experiments, A simple method to implement the above functions by using the OLE method of the COM interface is summarized. The following is an introduction to the readers:Now we want to

When it comes to digital image processing programming, perhaps most people will think of MATLAB, but MATLAB has its own shortcomings:1, not open source, the price is expensive2, the software capacity is large. Generally more than 3G, high version even up to 5G or more.3, can only do research, not easily converted into software.Therefore, we use the Python scripting language here to do digital

non-linear brightness/contrast in "C ++ Image Processing-brightness/contrast adjustment. The principle is represented by a formula: If the value range of the brightness increase or decrease is-1 -- + 1, when the value is greater than 0: RGB = RGB + RGB * (1/(1-value)-1) When value is RGB = RGB + RGB * value The following is the code for adjusting the linear brightness of an

This example describes the CI framework file upload class and image processing class usage. Share to everyone for your reference, specific as follows: List page banner picture public function Edit_list_page_banner ($category _id= "") {$category _id= empty ($category _id)? $_post[" category_id "]: $category _id; Upload picture if (isset ($_post["key")) $_post["key"] = = "Upload") {/* 1.set_upload_pa

Image processing functions: Zoom, cut, frame, watermark, sharpen, rotate, flip, transparency, invert color, process and save the history of the idea: when there are changes in the picture to automatically generate a new picture, naming method can be considered in the original image based on the addition of steps, such as: Picture name +__ step. You can refer to t

Very powerful PHP image processing class, you can customize the image watermark, transparency, image scaling, image sharpening, picture rotation, picture flipping, picture cutting, picture inverse color. The specific code is as follows: /***

Image processing is approximate (capture), zoom (scale), set size (resize), storage (Save)These are good to deal with, there are filters, wipe, etc.In this demo code, I wrote a few ways1. Equal ratio Scaling-(UIImage *) Scaleimage: (UIImage *) image toscale: (float) scalesize{Uigraphicsbeginimagecontext (Cgsizemake (Image.size.width * scalesize, Image.size.height