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Add a watermark image or text to an Android Image The basic idea of adding a watermark to an image is to load the source image, add text or load the watermark image, and save the three parts of the
When you use ImageView to display images in Android, you find that the picture is not showing, the direction is skewed or upside down. To solve this problem, it is natural to think of two steps to go: 1. Automatic recognition of Image direction and calculation of rotation angle; 2, the image is rotated and displayed. first, identify the direction of the
B channel//computed image histogram Calchist (image, 1, channels, Mat (), hist, dims, size, ranges); CV is cvcalchistfor (int i = 0; i (2) code for three distance measurementsEuropean range Float getdistance (int *sur, int *dst) {Float sum = 0;for (int i = 0; i Test Picture:Cosine Result:Babbitt Distance Results: where " i-j ", NBSP; i stands for personi NBSP; J stands for personi person
Two years ago, I wrote "principles of similar image search" and introduced a simple implementation method. Yesterday, I saw on the isnowfy website that there are two other methods that are also very simple. Here are some notes. 1. the color distribution method each image can generate a color distribution histogram (colorhistogram ). If the histograms of the two i
Transferred from: Http://www.tuicool.com/articles/U3URRrIProjects often encounter the need to process an image into gray, in order to save resources, generally do not allow the art to do a set of the same grayscale, usually through the code processing to make the picture gray. There are many ways to use shader to deal with the image of Gray, these methods do also achieve the need to make the picture Gray, b
It was often done with bitmap, drawable, and canvas, and it was necessary to write a series of complicated logic to narrow down the original image to get a thumbnail image.Now I will introduce a relatively simple method: (online)In the Android 2.2 version, a new Thumbnailutils tool class is implemented to implement thumbnails, the functionality of this tool class is powerful, the use is simple, it provides
This article will talk about the image overlay effect processed by picture effects. The same as the front face is the pixel processing, you can refer to the previous Android image processing series seven-picture graffiti, watermark-image overlay and Android
Win7 System How to quickly search for a suffix named jpg format image The specific methods are as follows: Workaround One: 1, open the computer, click on the desktop "computer", small series is Win7 system, so is the computer; 2, open the Computer folder, in the upper right corner of the search computer box, there will be 3 kinds of formats, types
Use BitmapFactory to obtain images and built-in image cropping tools suitable for the screen size Package com. lin. image;Import android. app. Activity;Import android. content. Intent;Import android. graphics. Bitmap;Import android
We all know that Baidu recently is greatly improve the user experience, in addition to the site webmaster unforgettable cheating sites and garbage site inventory, the introduction of the new home page, the quality of their own content is to make a refreshing change. But today Baidu has done a greater user experience to upgrade, will give the vast number of users to bring more surprises, that is, Baidu Pictures. The former Baidu pictures in my view really very general, clarity, precision and so I
Google Goggles Image search: At present, the goggles program is testing phase, only to support the installation of Android1.6 above the operating system of mobile phones. Goggles is a support cell phone shoot, will take a picture analysis, get information about this image search function. For example: If you take a mo
lamp_off.pngivLamp.setImageLevel (6);} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds items to the action bar if it is PR Esent.getmenuinflater (). Inflate (R.menu.main, menu); return true;}}Combined with the previous blog post, you can see that the image State resources and image level resources can be used to achieve the button different state display different ima
After the android image is renamed and set as a contact, the system prompts that the image cannot be loaded,Rename an image -- rename the image as a contact icon -- rename it with the same image again -- when you set it as another
Today this is from a library station recommended in the previous collection, the recent practice of in-depth use, found that it is indeed a very good picture material library, not only provides a large number of free use of photos, vector maps and art illustrations, but also free to download the use, including commercial use, do not need to be signed. Another one can be used to search the image by color and
upper and lower layers, and the lower layers are displayed on the upper and lower layers.PorterDuff. Mode. SRC_IN: obtains the intersection of two layers of images. Only the upper layer images are displayed.PorterDuff. Mode. DST_IN takes the intersection of two layers of images and only displays the lower layer images.PorterDuff. Mode. SRC_OUTPorterDuff. Mode. DST_OUTPorterDuff. Mode. SRC_ATOP: the lower-level image is not the intersection department
content, we must optimize the label information, and the picture around the layout of the keyword contains descriptive information, so that the search engine sense of relevance, but also conducive to user browsing. 3, do a good job of picture sharing function. Now a lot of sharing tools are also providing image sharing function, we will be very good use of tools for the picture to add share function, so t
There are 3 ways to get pictures, one is to use the surface control, using the lens to obtain the picture, and the second is to call the system camera, and return the pictures taken; third, directly in the use of the library to obtain local images; Here I only use the following two methods to get the picture (the system provides a method, why not? It will take so much effort to develop a new function that has already been made, not to reinvent the wheel. In the process, I met several wonderful a
I recently saw the usage of ViewFlipper and Animation together, and I wrote it myself. It seems very gray and easy to use, and the effect is much better than that of gallery scrolling and viewing images, this also enables switching between images on the scrolling screen, but the user experience is much better! So I will share my own demo! I hope it will be useful to you and it will be easier for me to check it later! Reprinted please indicate the source: Http://blog.csdn.net/wdaming1986/article/
GitHub https://github.com/nostra13/Android-Universal-Image-Loader.Let's take a look at the usage of the Android-Universal-Image-Loader framework; 1. initialize ImageLoaderConfiguration (global, initialize configuration throughout the application, configure cache, and load threads) ImageLoaderConfiguration config = ne
Android imitation circle of friends image browser (supports image gesture scaling and dragging ),※Effect※Used open source LibraryPhotoView Image Scaling: supports double-click scaling and finger scaling. Https://github.com/chrisbanes/PhotoView Universalimageloader image do
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