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Questions tagged [image-manipulation]

Image manipulation is the term used to describe various operations applied to images such as resizing, removing noise, or alteration of colour depth.

Image manipulation is the term used to describe various operations applied to images such as resizing, removing noise, alteration of colour depth. These operations are usually performed to improve the quality of the image (such as the removal of noise) or to alter it so that the image file is better suited to its intended usage(such as resizing to meet display constraints on a mobile device).

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Enlarging two objects at the same time in one animation action ising jQuery

Please look at the following test page : sample page showing two images. You see small images which get a bit enlarged when you move over the image. I have used jQuery to do this, but ran into the following problem. The only way I got the wanted…
Edelcom
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Python (Jython) Playing notes from pixels in picture

This is from a class assignment: This program is about listening to colors. We will treat pictures as piano scores. Write a function called listenToPicture that takes one picture as an argument. It first shows the picture. Next, it will loop through…
roger34
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Create a location map using a variety of photos

I was asked to form a team which must be thinking \ create a software to create a map of a city (or other), starting from satellite photos (I assume with tags gps). We decided to create a web app, but we do not know where to start. We thought…
user3452979
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how do I find the h&w of an image and convert to vars, then use those vars

ok, here's the deal: I'm using a nice plugin I got from http://www.webmotionuk.co.uk/php-jquery-image-upload-and-crop/ It's nice and all, but it doesn't solve a particular problem: I'll have users uploading images of differing sizes and aspect…
Adam
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ImageMagick: How to create a black rectangle with opacity 40%?

I work on a longer workflow to design elegant maps (project @Wikiatlas). With ImageMagick shell command (convert?)... How to output a 1200px wide, 1000px high black png image with an opacity of 40% ?
Hugolpz
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Multiple file upload then crop and resize using image magician

I've googled and googled but can't seem to find a way to have a multiple file upload then crop/resize each image. I'm using image magician for my single file uploads and it works great! Any help would be greatly appreciated! p.s this is in PHP
Laura Clarke
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Codeigniter image manipulation output black

I am getting a black area to handle this with CI, the image have 950x720 the first resize is ok $this->resize($data['upload_data']['full_path'], 220, 200, true, false); but in the second, the error appear code on…
Mateus Vahl
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Blurring a picture (Python, Jython, picture editing)

Trying to blur a picture in Jython. What I have does run but does not return a blurred picture. I'm kinda at a loss of what is wrong with it. FINAL (WORKING) CODE EDITED IN BELOW. THANKS FOR HELP GUYS! def main(): pic= makePicture(…
roger34
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Selecting a non-standard image area in a web application

This question is for a web application. And maybe it's a stupid question but I was wondering if there is a way to generate a polygon with 4 points, so that the user can himself drag each point to create it's own (As an example, let's say that we…
Sebastien Lachance
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Chat application image sending and receiving issue

I am making my Android based chat application using PHP language and trying to get image. But as we know gcm cannot give notification for more then 4kb. I am facing trouble to converting an image of big size on my server and get it notify by gcm to…
simpleman
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Split image across pages to print

I am trying to print an image in vb.net. The size of the image is dynamic, and is derived from a panel, so can span more than 1 page. For this, I am cropping the image and printing the first part, then recursively calling the procedure to print the…
jsd150
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How do I create a single PNG from two PNG files?

I have two PNG files that I need to lay one on top of the other. The first image, the red one, is the background, and the second, the green image, needs to be laid over top of the red background image. How would I go about creating this single image…
SAL
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How do I efficiently concatenate ImageMagick and convert commands to produce a no of images

I have a big big size image of dimensions 4000*4000. I want to carry out various operations on the image : convert a.jpg -crop 6x6@ +repage +adjoin tile_6_%d.jpg convert a.jpg -crop 9x9@ +repage +adjoin tile_9_%d.jpg convert a.jpg -crop 3x3@ +repage…
Sahil Grover
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How to optimize image processing in Symfony from model

Assume a Doctrine model Profile: # This is example of my schema.yml Profile: columns: avatar: type: string(255) notnull: true My goal is to generate profile's avatar from uploaded file: class Avatar extends BaseAvatar{ public…
Darmen Amanbay
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GDI+:How to overlay an image on top of another one?(without using Graphics object)

I'm working on a solution that enables our users to draw annotations over images.So far I'm using graphics object to draw an image(annotations) over another one. The problem is that we can't always get a Graphics object from an image(GDI+ throws an…
Beatles1692
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