The image-manipulation tag has no wiki summary.
2
votes
1answer
136 views
Dataset with coordinates of borders of countries
I am creating an application that visually displays world regions, e.g. to place markers within an administrative region.
Does a dataset exist with geometrical or geographical (long/lat) descriptions ...
9
votes
1answer
576 views
What is the current status of software support for JPEG-2000?
The general recommendation to record original scanned images used to be "use TIFF". But programmers need evolution of format for "evolution of software", and I need to evolve my system to change from ...
2
votes
1answer
97 views
What is watershed in the context of image processing?
I am new to image processing using Python. Now I am learning OpenCV and the mahotas module in Python. Many functions in these modules are related to watershed of an image. I don't know what ...
3
votes
1answer
212 views
Extracting color profile information from JPEG files
I'm trying to look up info about reading JPEG's color profile info and to my surprise there's very little open specific how-to information on that regard, but rather lots of general explanation on ...
8
votes
4answers
396 views
Annotate source code with diagrams as comments
I write a lot of (primarily c++ and javascript) code that touches upon computational geometry and graphics and those kinds of topics, so I have found that visual diagrams have been an indispensable ...
7
votes
2answers
143 views
Resizing an image with a non-integral conversion factor
I'm resizing an image based on a non-integral conversion factor (a bmp image, in fact). I understand how resizing works, just non with a decimal number. For instance, if the factor were 2, I would ...
3
votes
1answer
216 views
Drawing shapes dynamically on an image through web browser
We have a scenario where we create floor plans of locations when we visit. The floor plan is finally shown on the web. It's come to the point now where we want to show floor plans but have a key with ...
0
votes
2answers
423 views
2D Image Creator for a video game
I need to make a few images for an arcade video game I'm making in Java. As of right now, I have drawings that animate, but there are two problems.
The drawings are horrible, and as a result, the ...
1
vote
2answers
1k views
Store HighRes photos in Database or as File?
I run a site which has a couple of million photos and gets over 1000 photos uploaded each day. Up to now, we haven't kept the original file that was uploaded to conserve on space. However, we are ...
2
votes
2answers
492 views
Storing images in file system and returning URLs or virtually resizing and returning byte arrays?
I need to create a REST web service to manage user submitted images and displaying them all in a website. There are multiple websites that are going to use this service to manage and display images. ...
4
votes
2answers
603 views
How image editing software change image contrast?
How Photoshop or other image editing software change an images contrast? What contrast mean when we process image pixel by pixel? Or what image contrast means?
Here I created a very basic image to ...
6
votes
3answers
767 views
Is CSS resizing of images still a bad idea?
It's always been looked at that using width/height attributes on images which aren't what the original image actual is is a bad idea. It could mean pixalated images or download sizes bigger than ...
0
votes
4answers
830 views
What is the easiest way of viewing an RGB byte array as an image? [closed]
I have a byte array stored in a file. I want the quickest, easiest way of viewing the image whether it is writing code or using a utility or web page.
4
votes
2answers
301 views
Is there a canonical book on edge detection?
I'm an embedded programmer by trade and have never properly worked with images. My current project requires some image analysis though, and I haven't the faintest idea where to start.
Is there a book ...
5
votes
2answers
388 views
Image color/grayscale classification
I am trying to classify a set of images into grayscale or color groups. I have been using ImageMagic to do that, comparing the color image to a grayscale version of itself and then using the Peak ...
2
votes
4answers
268 views
Do paint programs also need database?
I was thinking about how would a paint software works. Firstly I thought that it might not use any database but when I started thinking about the undo function I realized that it might be that the ...
2
votes
4answers
4k views
Which is better : Storing/retrieving images on/from SQL server or in a directory on server
I am working on a project in Asp.net MVC and need to work with images. There is an SQL database with a Product table. Every product in the table will have it's own image. I have two ways to do this :
...
10
votes
5answers
2k views
What's the best way to learn image processing?
I'm a senior in college that hasn't done much image processing before (except for some basic image compression on smartphones). I'm starting a research project on machine learning next semester that ...
5
votes
1answer
450 views
What factors should I be looking at to increase performance in image resizing?
I'm setting up a web app in which people will upload images. Once uploaded the images will be watermarked then resized multiple times (Thumbnails, different sizes etc.) and finally uploaded to Amazon ...
2
votes
1answer
194 views
why is it easy to break verification images if they are not distorted to the extent that humans can get them wrong too?
I don't understand why people like to say "Images had to be distorted otherwise they would be easily cracked". I'm talking about those verification images that we had to type to identify that we are ...
12
votes
5answers
1k views
How to know if two images are the same?
I have over 10000 images which about 2000 are duplicates in other formats (as in JPEG, PNG, GIF). Both of these numbers are increasing every day. I need to delete those duplicates and for that I must ...
5
votes
3answers
1k views
Best practice- handling images on website
I am porting an old eCommerce site to MVC 3 and would like to take advantage of design improvements. The site currently has product images stored in 3 sizes: thumbnail, medium (for display in a list) ...
1
vote
1answer
312 views
Does anyone have any experience with scene7 image server? [closed]
Scene7 is Adobe's image server. It seems like many people are using it.
We are considering using it. I want to know the developers experience. Was a pain to develop with or did it make things easier? ...
4
votes
2answers
339 views
Online medical image processing grand challenges [closed]
I'm currently working on my thesis, and I'm looking for an/some online medical image processing grand challenge(s). I already know this site but I need a challenge which has microscopic image dataset ...
4
votes
6answers
206 views
Could anyone suggest me some image manipulation techniques to be added to my image viewer?
I'm trying to develop a small image viewer just as an exercise to sharpen my programming skills. So far , all the features that I could think of adding to it are zooming in and out, inverting the ...
