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Extract image dimensions (height, width) from Base64 String?I have managed to stitch together an awesome method of posting text along with an image to a database, in a way that allows an unlimited number of previews to ensure that text and image are perfect before submission. This involves converting any uploaded image to a Base64 String and holding that in a hidden form field until either the post gets submitted to the database or the image gets replaced with another one. I have just one question. It is really easy to determine the image’s dimensions during the initial “preview†(before it is converted to Base64), but the data naturally gets lost on subsequent previews if the only thing getting passed along is the Base64 string containing the image data. I was wondering if there was some way I could parse the Base64 String to determine the dimensions of the image, or do I have to take the much more messy way of including hidden form fields to hold the values? TIA ...Geshel -- *********************************************************************** * My reply-to is an automatically monitored spam honeypot. Do not use * * it unless you want to be blacklisted by SpamCop. Please reply to my * * first name at my last name dot org. * *********************************************************************** “Anyone who believes in Intelligent Design (“creationismâ€) is just as ignorant and ill-educated as someone who believes that the world is flat, that the Sun circles the Earth or that there really is a tooth fairy. Darwinism has an overwhelming foundation of evidence that can be tested and reproduced. Intelligent Design, on the other hand, has no evidence at all; not one single shred of testable proof. As such, Intelligent Design is Religious Mythology, and has no right whatsoever to be in our Science classrooms.†- 99.99+% of Scientists *********************************************************************** Mignon McLaughlin once said that “A nymphomaniac is a woman [who is] as obsessed with sex as the average man.†Unfortunately, since true nymphomaniacs are so rare, this means that it takes an extraordinary woman to keep up with an ordinary man. ***********************************************************************  |
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