thumbnails

问题 How does Chrome browser capture a thumbnail image of most visited URLs and show me over a blank page under Most visited?? I am interested in knowing how I would implement it using for my website or an extension.. to take take screenshot. Lalith 回答1: If you want to write an extension that captures a screenshot of a current site then there is chrome.tabs.captureVisibleTab() method. 回答2: I can only tell you how would I implement it. Once you would go to a site, I will add 1 to a counter if how

问题 I want to use IShellItemImageFactory to retrieve the shell thumbnail of files. According to the MSDN docs, if I pass in a SIZE struct of 256x256, it should populate the HBITMAP parameter with a 256x256 bitmap, and if I use the SIIGBF_RESIZETOFIT flag, it should resize smaller thumbnails to 256x256. It doesn't. Instead, the result is a 256x256 bitmap with a small icon drawn in the middle. Okay, maybe that's just not what SIIGBF_RESIZETOFIT is supposed to do. But then, as I understand it, I

问题 i have been working in a video website [platform: php] where i need to upload videos in Amazon S3 server and extract thumbnail. I have created a bucket and uploaded video file successfully in that bucket. But i don't know how to extract the thumbnail from that uploaded video. So, that's where i stuck. Any help will be appreciated. Thanks in advance! 回答1: Here you've got some options. First - you can "extract" a thumbnail from the video before you upload it to AWS. Something like: upload video

问题 I am using Twitter Bootstrap thumbnails in my project, but the length of the caption under each photo is different each time and I want them to fill all the space like this example on Pinterest: http://pinterest.com/all/?category=diy_crafts How can I achieve this? Thanks. 回答1: You can't achieve with the thumbnails with twitter bootstrap in this case, because the float:left of the thumbnails will not work as you want. The float:left always put the next thumbnail just under the last float

问题 I have gallery where user can submit Youtube links to videos and server fetches the thumbnail from Youtube automatically. However, lots of videos contain black bars on top and bottom of the image. I know the origin of the black bars, but as i resize thumbnail to square, the black bars interfere with the design. I have tried to analyze pixel color from top to bottom until no black color is found ( imagecolorat() ), but it still leaves some near-black color so the small bars still reside in the

问题 In my old PHP apps i used to run a function like the one bellow to create jpeg image thumbnails. function imageThumbanail() { $image_src = imagecreatefromjpeg('http://examplesite.com/images/sample-image.jpg'); $thumbnail_width = 180; //Desirable thumbnail width size 180px $image_width = imagesx($image_src); //Original image width size -> 1080px $image_height = imagesy($image_src); //Original image height size -> 1080px $thumbnail_height = floor( $image_height * ( $thumb_width / $image_width )

问题 I'm basically looping over a bunch of youtube video url's to get each video's id code. I then reiterate over all 'thumbnail' images in a list and replace the source with the youtube video thumbnail url. The problem I am currently running into is that if the video has been removed from youtube the resulting image source will not return a functioning image url, however the replace is still firing thus a broken image url is placed into the list. How can I get jQuery to detect whether the url is

问题 I'm trying to develope a Python's script which needs to post content to a wordpress blog, the problem is that I need to set an image as the thumbnail of the post and I don't have any idea of how to do it. This is an example of a code to post something (without thumbnail) to WP: import xmlrpclib user = 'username' passwd = 'password' server = xmlrpclib.ServerProxy('http://vizible.wordpress.com/xmlrpc.php') blog_id = 0 title = 'test title' content = 'test content, from python' blog_content = {

问题 I was looking at a way to dynamically create thumbnails using PHP and GD but everytime i select a large image maybe 10MegaPixels about 4-5MB it gives the error **images/Surabhi_Cow.jpgimages/tn/Surabhi_Cow.jpg Fatal error: Allowed memory size of 31457280 bytes exhausted (tried to allocate 10368 bytes) in C:\Program Files\xampp\htdocs\MySite\Staff\test.php on line 51** Changing the memory_limit in php.ini to 60 does the trick but my host only allows the memory_limit to 32M. What other options

问题 I have this code that I use to resize and save a file that is posted by the user. The issue is that when I rezise to a 480px width the image looses lots of quality and the size in kb is still pretty big. For instance, when I resize the same image to 480px "by hand" using a software like Paint, the quality is still as good as the original (from what my eye can tell) and the size in kb is a lot smaller than resizing using the GetThumbNailImage method. Mdn says "If you request a large thumbnail