ASP.NET MVC download image rather than display in browser
I believe you can control this with the content-disposition header. Response.AddHeader( “Content-Disposition”, “attachment; filename=\”filenamehere.png\””);
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How to force an image to be full width and maintain aspect ratio using React Native?
My use was very similar in that I needed to display an image with full screen width but maintaining its aspect ratio. Based on @JasonGaare’s answer to use Image.getSize(), I came up with the following implementation: class PostItem extends React.Component { state = { imgWidth: 0, imgHeight: 0, } componentDidMount() { Image.getSize(this.props.imageUrl, (width, height) => … Read more
Inserting Image into DocX using OpenXML and setting the size
The sizes, in EMUs (English Metric Unit — read this for a good explanation), are set in the Extents (the Cx and Cy). In order to get a pic into a DocX I usually do it like so: Get the image’s dimensions and resolution Compute the image’s width in EMUs: wEmu = imgWidthPixels / imgHorizontalDpi … Read more
jquery simple image slideshow tutorial [closed]
This is by far the easiest example I have found on the net. http://jonraasch.com/blog/a-simple-jquery-slideshow Summaring the example, this is what you need to do a slideshow: HTML: <div id=”slideshow”> <img src=”https://stackoverflow.com/questions/12068734/img1.jpg” style=”position:absolute;” class=”active” /> <img src=”img2.jpg” style=”position:absolute;” /> <img src=”img3.jpg” style=”position:absolute;” /> </div> Position absolute is used to put an each image over the other. … Read more
Compare two Images in JavaScript
No, there is no especially easy way to do this. JavaScript was not made for handling low-level operations such as working directly with binary data for, say, image processing. You could use a <canvas> element to base64 encode each image, and then compare the resulting base64 strings, but this will only tell you whether or … Read more
Making an image act like a button
It sounds like you want an image button: <input type=”image” src=”https://stackoverflow.com/questions/16131988/logg.png” name=”saveForm” class=”btTxt submit” id=”saveForm” /> Alternatively, you can use CSS to make the existing submit button use your image as its background. In any case, you don’t want a separate <img /> element on the page.
Horizontal Line detection with OpenCV
Have you seen a code sample from HoughLinesP function documentation? I think you can use it as starting point for your algorithm. To pick horizontal an vertical lines you just need to filter out other lines by line angle. UPDATE: As I see you need to find not the lines but horizontal an vertical edges … Read more
How to create a video from an array of images in Android?
You can use jcodec SequenceEncoder to convert sequence of images to MP4 file. Sample code : import org.jcodec.api.awt.SequenceEncoder; … SequenceEncoder enc = new SequenceEncoder(new File(“filename”)); // GOP size will be supported in 0.2 // enc.getEncoder().setKeyInterval(25); for(…) { BufferedImage image = … // Obtain an image to encode enc.encodeImage(image); } enc.finish(); It’s a java library so … Read more
How do I change an image on hover over in WPF?
You need to use a Trigger on the IsMouseOver property to modify the Source of the Image: <Image> <Image.Style> <Style TargetType=”{x:Type Image}”> <Setter Property=”Source” Value=”C:\Image1.jpg”/> <Style.Triggers> <Trigger Property=”IsMouseOver” Value=”True”> <Setter Property=”Source” Value=”C:\Image2.jpg”/> </Trigger> </Style.Triggers> </Style> </Image.Style> </Image> Note that Triggers can only be used inside Styles, and in order for a Trigger to change a … Read more