Change image scaling algorithms with CSS
List of non-standard CSS attributes that change how the browser resamples scaled images. Only use them if you know 100% which browser the client is going to use. Otherwise just stick with the default.
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Preloading images with CSS
Sometimes you want to preload images that you will be using later. E.g. if hovering over a an area changes its background image, the new image should be preloaded. If you only load it once the user starts hovering, there will be a delay until the ...
Dynamically uploading files to Rails with jQuery File Upload
Say we want …
- to create a
Gallerythat has a name andhas_many :images, which in turn have a caption - to offer the user a single form to create a gallery with any number of images
- immediate uploads with a progress bar per image
- a snapp...
Print-Friendly Images and Logos with CSS
The trick is this: send a low-resolution version of your image to the screen, and a high-resolution version to the printer.
CarrierWave: Processing images with libvips
When you write your next CarrierWave uploader, consider processing your images with libvips instead of ImageMagick.
Reasons for libvips
There are several **upsi...
How to view Image Metadata on the Linux Command Line with ImageMagick
ImageMagick has a command line tool called identify which can read image metadata:
>identify -verbose DSC00136.JPG
Image: DSC00136.JPG
Format: JPEG (Joint Photographic Experts Group JFIF format)
Class: DirectClass
Geometry: 5472x3648+...
Images darken when getting converted with ImageMagick
When using ImageMagick to manipulate images, you might see that images get darker when beeing modified by newer versions of ImageMagick.
This usually happens with CMYK images beeing converted to RGB by IM.
Solution
At least in our version of ...
Image Rollover Borders That Do Not Change Layout | CSS-Tricks
It’s a fact of CSS life that the ‘border’ of any block level element gets factored into it’s final box size for layout. That means that if you add a border on a hover to an element that didn’t already have a border of that exact size, you will cau...
Always convert and strip user-provided images to sRGB
Debugging image color profiles is hard. You can't trust your eyes in this matter, as the image rendering depends on multiple factors. At least the operation system, browser or image viewer software and monitor influence the resulting image colors ...
Styling SVGs with CSS only works in certain conditions
SVG is an acronym for "scalable vector graphics". SVGs should be used whenever an image can be described with vector instructions like "draw a line there" or "fill that space" (they're not suited for photographs and the like). Benefits are the MUC...