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Questions tagged [image-optimization]

Image optimization deals with optimization methods for image manipulation and display. How to better process image data, how to allow for more efficient display of images, etc.

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Trying to optimize image upon upload

I have a form with a couple of text inputs and a file upload. The form works great, it uploads the file where it's supposed to and adds the reference to that file in the database. Problem is the images are huge. So I would like the form to continue…
James Welbes
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When requested object from CF origin doesn't exist, s3 not following redirection rules (Access Denied instead)

I am building an on the fly image optimizer using CloudFront, S3, API Gateway, and Lambda, but right now I am still in the process of getting my CloudFront origin to fallback to my s3 custom error path. Here's the flow I'm looking for: Request…
Dan
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how to create effective header images to adapt to all screen sizes without pixelating

I have been creating a website on my laptop. And I keep the width of header image to 100% and height 400px. I optimize my images of sizes ranging from 800 px x 600 px to 1920 px x 1800 px to fall around 20 Kbs with optimizing tools online and…
user3526204
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A more faster (optimized) solution to image decimation (C++)

I am looking for a more faster way of dealing with the following C code. I have an image of 640x480 and I want to decimate it by a factor of 2 by removing every other rows and columns in the image. I have attached the code in the following. Is there…
Jack Reacher
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Better Compression with jpegoptim

I'm trying to optimize my photos for google insight. I'm using jpegoptim for it. I'm using $jpegoptim --strip-all --max=60 myfile.jpg but still google insight says that it is possible reduce file size +60% Then I tried $jpegoptim --strip-all…
fobus
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Optimizing performance for image displays

I am writing a web application that has a page that returns a list of results of objects that each have a profile photo. I am unsure of how large I expect this page to get, but I want to account for it getting to a larger level. Right now, I am only…
TheJediCowboy
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Optimise/compress images uploaded with refile

Is there a way to optimise images uploaded with refile? I use a CDN so the files are mostly just created once, but i would like them to be optimised to save bandwidth. I use Mini Magick for image manipulation, but can this also be used to reduce…
Ole Henrik Skogstrøm
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GAE - Upload optimized image to cloud storage

I'm working on a simple app that takes images optimizes them and saves them in cloud storage. I found an example that takes the file and uses PIL to optimize it. The code looks like this: def inPlaceOptimizeImage(photo_blob): blob_key =…
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How to implement CSS sprites in Magento?

Hello I have been looking for some tutorial on CSS sprites for Magento. Found a couple of plugins like GTspeed, Webo but so far nothing achieved. Can you help?
thisismairaj
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Does PNG_COLOR_MASK_ALPHA map to a particular OpenGL color format?

I'm a little confused after running png gauntlet on some png texture assets. Previously all of them were either PNG_COLOR_TYPE_RGB or PNG_COLOR_TYPE_RGBA and therefore mapping them to the appropriate GL color format was simple enough. Full…
Joey Carson
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Most effective way of reducing load times and bandwidth usage of images

I have a giant image that loads on the main page of my website, 1366*690px I realized that is gigantic and decided to take considerations on speeding up the load times. I first ran it through Smush.it Then I coded some javascript to load different…
user3483494
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Ipa file size after adding big picture

After adding a big picture (1.1 MB) to iPad app bundle, ipa file size changes from 2MB to 4.1MB. Can someone please explain why it happens and is it normal behaviour? I thought Xcode optimizes png files or am I wrong?
sash
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ImageOptim breaks png files

I would like to compress png files on my site. I found ImageOptim program. For jpeg files it works great, but when I compressed png files it displayed incorrectly on the site (part of the picture is cut off). My question is how to make it work in…
Tamara
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How to optimize images served through the dispatcher

I'm working on a CQ5.5 instance. I'd like to always serve up web optimized images. That is, images that have been optimized to reduce their size without affecting the quality. I've found that even when I run image renditions created by CQ…
Shawn
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Using pngquant with AppleScript

Can anybody share an applescript which uses the pngquarnt to optimize images in a folder. May be even an Apple service be useful. Note: There is an terminal command to do the same thing, but i am talking about a newbie, who can just right click on…
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