You need to use base64_decode(). AND. Sometimes it is not sufficient. Here is all code that you need: $img = $_POST[‘data’]; $img = str_replace(‘data:image/png;base64,’, ”, $img); $img = str_replace(‘ ‘, ‘+’, $img); $fileData = base64_decode($img); //saving $fileName=”photo.png”; file_put_contents($fileName, $fileData); P.S. I used this code to get PNG image from html canvas.
In the forum at http://www.php.net/gd the following comment is written: IE doesn’t show TIFF files and standard PHP distribution doesn’t support converting to/from TIFF. ImageMagick (http://www.imagemagick.org/script/index.php) is a free software that can read, convert and write images in a large variety of formats. For Windows users it includes a PHP extension php_magickwand_st.dll (and yes, it … Read more
Here is one way with ImageMagick that will acomplish this without using a mask: convert -size 200×200 xc:none -fill walter.jpg -draw “circle 100,100 100,1” circle_thumb.png
The simplest way to do this is let php decide what is the file type: $image = imagecreatefromstring(file_get_contents($src));
Install GD Library Which OS you are using? http://php.net/manual/en/image.installation.php Windows http://www.dmxzone.com/go/5001/how-do-i-install-gd-in-windows/ Linux http://www.cyberciti.biz/faq/ubuntu-linux-install-or-add-php-gd-support-to-apache/
Matt, If you make your png with the oval white fill on black background instead of black fill with transparent background the following function does it. <?php // Load source and mask $source = imagecreatefrompng( ‘1.png’ ); $mask = imagecreatefrompng( ‘2.png’ ); // Apply mask to source imagealphamask( $source, $mask ); // Output header( “Content-type: … Read more
Set imagealphablending($image,true); on each new layer. Try this: <?php $image = imagecreatetruecolor(485, 500); imagealphablending($image, false); $col=imagecolorallocatealpha($image,255,255,255,127); imagefilledrectangle($image,0,0,485, 500,$col); imagealphablending($image,true); /* add door glass */ $img_doorGlass = imagecreatefrompng(“glass/$doorStyle/$doorGlass.png”); imagecopyresampled($image, $img_doorGlass, 106, 15, 0, 0, 185, 450, 185, 450); imagealphablending($image,true); /* add door */ $img_doorStyle = imagecreatefrompng(“door/$doorStyle/$doorStyle”.”_”.”$doorColor.png”); imagecopyresampled($image, $img_doorStyle, 106, 15, 0, 0, 185, 450, 185, 450); … Read more
You have to calculate the distance to each color, and pick the smallest. There are a few ways to do this. A simple method would be to calculate the distance would be: sqrt((r-r1)^2+(g-g1)^2+(b-b1)^2) A better method might be to incorporate the weighted values to calculate a distance, for instance the values used when converting RGB->YUV: … Read more
To trim all whitespace, as you call it, surrounding the interesting part of the image, first we find out where the “whitespace” stops, and then we copy everything inside of those borders. //load the image $img = imagecreatefromjpeg(“http://ecx.images-amazon.com/images/I/413XvF0yukL._SL500_AA280_.jpg”); //find the size of the borders $b_top = 0; $b_btm = 0; $b_lft = 0; $b_rt = … Read more