loadimage

Can't load image from my local server on Android

由 给你一囗甜甜゛ 提交于 2019-12-25 01:45:00
问题 I am trying to load an image from a server to show it in an ImageView I used ImageView imgView = (ImageView) findViewById(R.id.ivProduct); Bitmap bitmap = null; try { URL urlImage = new URL( "http://www.google.fr/intl/en_com/images/srpr/logo1w.png"); HttpURLConnection connection = (HttpURLConnection) urlImage .openConnection(); InputStream inputStream = connection.getInputStream(); bitmap = BitmapFactory.decodeStream(inputStream); imgView.setImageBitmap(bitmap); } catch (MalformedURLException

Problem solved! - List element set as parameter to grayscale() function leads to error

由 [亡魂溺海] 提交于 2019-12-25 01:39:38
问题 I've loaded images with load.image() function to a list, and when I wanted to add the index from the list as the parameter to a function called grayscale() , I've got the following error: Error in if (spectrum(im) == 1) { : argument is of length zero Could someone please help me in this problem? filenames <- list.files("~/Downloads/project", pattern="*.jpg", full.names = T) if(!is.null(filenames)){ for(idx in filenames) { im <- idx print(im) load.image(im) im1=grayscale(im); Problem is solved

Set an Image object as a div background image using javascript

由 混江龙づ霸主 提交于 2019-12-17 15:52:02
问题 I want to load 4 images from background showing a load bar to the client and when the images will be downloaded i want to set them as background images to 4 div blocks. I am looking for something like this. var myImages = new Array(); for(var i = 0; i < 4; i++) myImages[i] = new Image(); //load images using the src attribute //and execute an on load event function where to do something like this. var div0 = document.getElementById('theDivId'); div0.style.backgroundImage = myImage[index]; Is

Set an Image object as a div background image using javascript

由 前提是你 提交于 2019-12-17 15:51:42
问题 I want to load 4 images from background showing a load bar to the client and when the images will be downloaded i want to set them as background images to 4 div blocks. I am looking for something like this. var myImages = new Array(); for(var i = 0; i < 4; i++) myImages[i] = new Image(); //load images using the src attribute //and execute an on load event function where to do something like this. var div0 = document.getElementById('theDivId'); div0.style.backgroundImage = myImage[index]; Is

How to load mutiple PPM files present in a folder as single Numpy ndarray?

由 大城市里の小女人 提交于 2019-12-13 09:54:28
问题 The following Python code creates list of numpy array. I want to load by data sets as a numpy array that has dimension K x M x N x 3 , where K is the index of the image and M x N x 3 is the dimension of individual image. How can I modify the existing code to do so ? image_list=[] for filename in glob.glob(path+"/*.ppm"): img = imread(filename,mode='RGB') temp_img = img.reshape(img.shape[0]*img.shape[1]*img.shape[2],1) image_list.append(temp_img) 回答1: You could initialize an output array of

OpenLayers onmousedown load image

由 我是研究僧i 提交于 2019-12-13 06:44:55
问题 I was looking at this example of openLayers ( http://openlayers.org/en/v3.14.1/examples/custom-interactions.html?q=custom ) and I was wondering how can I load a small image like the one in the example on mouse down on the map? I tried several things but couldn't figure it out. Any ideas? Thanks! 回答1: The example you link to uses custom interactions to drag existing features around the map - this code is very useful and I used it to work out how to drag markers around my map. However, there is

How to load a small system icon?

由 本小妞迷上赌 提交于 2019-12-12 07:06:50
问题 I need to display 16x16 pixel icons for error/warning/information. Unfortunately both LoadIcon(0, IDI_*) and LoadImage(0, OIC_*, IMAGE_ICON, 16, 16, LR_SHARED) always give me the 32x32 version of the icon. I read about ShGetStockIconInfo but that is only available from Vista onwards and I still need to support XP. Any ideas? I'm using Delphi 2010 with a TImage component if that matters. 回答1: The problem is that when you do it this way you get a cached version of the icon, the first one that

Is there any native functions in Linux that load and save images without using external libraries? [closed]

由 元气小坏坏 提交于 2019-12-12 03:49:20
问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . In Windows LoadImage API loads image to the memory. FreeImage (http://freeimage.sourceforge.net) is a cross-platform library for loading and saving

Can't get EXIF info using loadImage.parseMetaData

由 会有一股神秘感。 提交于 2019-12-10 17:22:25
问题 I am using JavaScript LoadImage.parseMetaData (https://github.com/blueimp/JavaScript-Load-Image) to try and get Orientation of an image on the web, so I can rotate it. If I hardcode the orientation (see "orientation: 3" in my second loadImage call), I can rotate it... but I am trying to use loadImage.parseMetaData to get the Orientation. I have used web based EXIF parsers and the orientation info is there in the image. When I call loadImage.parseMetaData "data.exif" seems to be null. See this

Win32双缓冲绘图和位图的绘制

由 最后都变了- 提交于 2019-12-10 15:01:10
前言： 为什么需要使用双缓冲技术？可能很多朋友会问，不知道你们有没有发现，当屏幕刷新的时候会有闪烁，这样让人的体验感极差。原因是绘图与显示器刷新不同步，有时间差，为解决这一问题，这就需要用到双缓冲技术来绘图了。双缓冲技术是相对单缓冲而言的，单缓冲就是直接在设备DC上绘图；而双缓冲就是先在一个与设备DC相兼容的内存缓冲区里进行绘图，然后再一次性复制到设备DC上。一次性在屏幕上显示就不会出现闪烁的现象。 这里需要注意的是：我们创建的兼容DC，不能直接在上面绘图，这里还需要一块画布，那我们创建的兼容DC就相当于画板，有了画板、画布，将画布选放在画板兼容DC上就可以进行绘图了。然后一次性贴在设备DC上就搞定了。如下： HDC mdc = CreateComatibleDC ( hdc ) ; // 创建兼容DC 画板 HBITMAP bmp = CreatrCompatibleBitnap ( hdc , 600 , 600 ) ; // 创建画布 SelectObject ( mdc , bmp ) ; // 将画布选入画板 一、双缓冲技术的使用 双缓冲绘图步骤： 在内存中创建兼容DC缓冲区（依次包括创建兼容DCCreateComatibleDC、创建画布CreatrCompatibleBitnap、将画布选入SelectObject）。 在缓冲区进行画图操作（可以画图形、也可以贴位图）
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