Merging two images with PHP

I got it working from one I made. <?php $dest = imagecreatefrompng(‘vinyl.png’); $src = imagecreatefromjpeg(‘cover2.jpg’); imagealphablending($dest, false); imagesavealpha($dest, true); imagecopymerge($dest, $src, 10, 9, 0, 0, 181, 180, 100); //have to play with these numbers for it to work for you, etc. header(‘Content-Type: image/png’); imagepng($dest); imagedestroy($dest); imagedestroy($src); ?>

How can I resize an image dynamically with CSS as the browser width/height changes?

This can be done with pure CSS and does not even require media queries. To make the images flexible, simply add max-width:100% and height:auto. Image max-width:100% and height:auto works in IE7, but not in IE8 (yes, another weird IE bug). To fix this, you need to add width:auto\9 for IE8. source: http://webdesignerwall.com/tutorials/responsive-design-with-css3-media-queries CSS: img { … Read more

How can I resize an image using Java?

FWIW I just released (Apache 2, hosted on GitHub) a simple image-scaling library for Java called imgscalr (available on Maven central). The library implements a few different approaches to image-scaling (including Chris Campbell’s incremental approach with a few minor enhancements) and will either pick the most optimal approach for you if you ask it to, … Read more

How do I resize pngs with transparency in PHP?

From what I can tell, you need to set the blending mode to false, and the save alpha channel flag to true before you do the imagecolorallocatealpha() <?php /** * https://stackoverflow.com/a/279310/470749 * * @param resource $image * @param int $newWidth * @param int $newHeight * @return resource */ public function getImageResized($image, int $newWidth, int $newHeight) … Read more

How to move and resize a form without a border?

Some sample code that allow moving and resizing the form: public partial class Form1 : Form { public Form1() { InitializeComponent(); this.FormBorderStyle = FormBorderStyle.None; this.DoubleBuffered = true; this.SetStyle(ControlStyles.ResizeRedraw, true); } private const int cGrip = 16; // Grip size private const int cCaption = 32; // Caption bar height; protected override void OnPaint(PaintEventArgs e) { … Read more

Resize a large bitmap file to scaled output file on Android

No. I’d love for someone to correct me, but I accepted the load/resize approach you tried as a compromise. Here are the steps for anyone browsing: Calculate the maximum possible inSampleSize that still yields an image larger than your target. Load the image using BitmapFactory.decodeFile(file, options), passing inSampleSize as an option. Resize to the desired … Read more

Rerender view on browser resize with React

Using React Hooks: You can define a custom Hook that listens to the window resize event, something like this: import React, { useLayoutEffect, useState } from ‘react’; function useWindowSize() { const [size, setSize] = useState([0, 0]); useLayoutEffect(() => { function updateSize() { setSize([window.innerWidth, window.innerHeight]); } window.addEventListener(‘resize’, updateSize); updateSize(); return () => window.removeEventListener(‘resize’, updateSize); }, []); … Read more