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Questions tagged [image-compression]

The objective of image compression is to reduce irrelevance and redundancy of the image data in order to be able to store or transmit data in an efficient form. Image compression may be lossy or lossless.

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image compression using s3 and lambda in java

I am trying to fetch image from s3 bucket of aws in lambda fuction and i want to compress this image and upload back to destination bucket of aws s3. I tried to fetch file from s3 and compress it.but facing problem in uploading the compressed file
Kiran
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compressed image looks hazy android

I am using Whatsapp like image compression code for compressing the image taken from my custom camera. The image after compressed looks hazy (little faded out) , looks like it has loosen its quality along with the size Compress.java public Bitmap…
karthik kolanji
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Fast download and compression of network-images in Python

I am working on an aggregation platform. We want to store resized version of 'aggregated' images from the web on our servers. To be specific, these images are of e-commerce products from different vendors. The 'item' dictionary has "image" field…
chetfaker
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How to reduce the computation time of the bit plane code

I have 256 binary matrices B(x,y) and I try to pool them in the group of 8 matrices. Considering a single pixel at a particular position (x,y), a set of binary values from matrices in the pool consisting of 8 matrices can be used to construct a…
Afnan Bayazed
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Image compression while maintaining the quality

I am making a custom camera that takes pictures of documents and sends them over the network. The images are then OCRed. For sending them over the network they must be of small size ( less than 100 Kb). I first scale down the image then convert to…
android_eng
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What are some options for handling image uploading/compression in ASP?

please bear with me as I'm not trying to frustrate anyone with inane questions, and I did google search this but I couldn't really find anything recent or helpful. I am a novice programmer and I am using a classic asp web application. I just enabled…
proseidon
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Sometime Crash while Image compress in different android device

This is my compress code: Bitmap bmp = decodeFile(temp, 100, 50); ByteArrayOutputStream baos = new ByteArrayOutputStream(); bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos); byte[]…
Rashiduzzaman Khan
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Quantized dct not yielding runs of 0

For quick reference here is a github link. I am attempting to implement a simple JPEG compression. I will provide some of the more notable methods. The issue is that I am not seeing any notable runs of 0 so my RLE encoding does nothing to compress…
Dimitry Rakhlei
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Image Compression using Haar Transform

I am a newbie writing a script for lossy image compression using Matlab. My first step was to have full level processing of an image, which I am doing by using the following script. clearvars all; N =…
Abhishek
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Reduce Resolution of DDS Images in a Folder

I've recently bought a Chinese Windows tablet for $170; It has an Intel Atom X5 Z8300 CPU, which is the low-end Intel Atom that came out last year. I am able to run most games on Roblox.com, but some are very script-heavy or detailed (such as…
Rontron
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How to resize images on node.js

So basically my front end is displaying images that are about 3-5mb. I need to find a way to make their size way smaller. Basically I have the file object on node.js uploading to amazon aws. I just need to compress it before it uploads. Also whats…
Nello
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OOM when compressing images?

I'm getting OOM when compressing image by using following code.i have recycled the bitmap after writing to file.but when compressing large images or continuously repeating three or four times the app crashes with OOM error.can any one help me out to…
Christ
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JPG and PNG compression, PHP and Ubunutu with jpegtran and pngcrush

I have several hundred images I need to optimise and compress. I have found the following script on github: https://gist.github.com/ryansully/1720244 which works ok. However the filesizes of the jpgs are not much smaller after compression. For…
MP_Webby
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Compress Image cause Error in Android

While clicking photo from smartphone, the image size is too large that it takes minute to upload so I want to reduce image size without affecting too much on its quality. So I got code from this website link. But while adding code in my existing…
raj
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Unable to port Lumia imaging SDK2.0 to SDK 3.0(UWP)

I am having a tough time converting lumia imaging SDK 2.0 code to SDK3.0 in below specific case. I used to increase/decrease the image quality of JPG file using below code in Windows phone 8.1 RT apps: using (StreamImageSource source = new…
harshbodhi
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