perspective

I have some images that takes using mobile phone. Is there any JavaScript library which can straighten the photo of a paper and flatten it? For example I want to create a rectangular image without any distortion from this image. In the other words I want to know how to fix perspective distortion and rotation with JavaScript? For example I found below sample image from this article: How to fix this type of image with javascript? Looks like https://www.npmjs.com/package/perspective-transform is what you are looking for. Create functions to map points from one arbitrary quadrilateral to another

I am confused about perspective projection. Here is the scenario that is confusing me. My frustrum's front plane is basically positioned at at positive z-axis and the back plane at a negative axis and rotated about some deg along the posive z-axis. Now, whenever I go through examples I see that the near and the far plane are all present in the negative z axis. My approach in this case was basically something like: glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustrum(-xval,+xval,-yval,+yval,-10,+10); gluLookAt(); // some point lying on this axis of symmetry about the point glMatrixMode(GL

I could not find the Java EE perspective in Eclipse Galileo. I want to develop a web application, but for this I need to change the Eclipse perspective. But, I could not find the Java EE perspective. Can anybody tell me how to add this to Eclipse? SP.K Relevant steps: Go to "Help" -> "Install New Software...". In the new dialog, in the "Work with:" pull-down list, select "Indigo - http://download.eclipse.org/releases/indigo ". (Note: Replace Indigo and the download list with download locations for your eclipse version) Select the following packages to install: "Web, XML, Java EE and OSGI

i have an slider and for cube effect i use css3's perspective:xxx; But when my element get value of perspective it and child elements loose added them z-index values, so mi images appearing in bottom of other elements. element.style { -webkit-perspective: 1000px; } I have removed given value of element after effect and it bring z-index values back .. but with other reason i cant remove it. So what can i do to not let to perspective affect on z-indexes ? Here is an example http://prognozplus.ru/144/ As you can see after first effect image loose the pointer cursor because other transparent

There are several examples on stack overflow of how to enable/disable the debug perspective from opening when the debugger activates (i.e., hits a breakpoint). This would be achieved by going to: Preferences -> Run/Debug -> Perspectives -> Open the associated perspective when application suspends My question is not about this. Whenever I start my server in debug mode, the debug perspective opens. Since I already have the debug view open in my custom perspective, this is not the behavior I want. I've tried editing every option in Preferences -> Run/Debug -> Perspectives, so I know the answer is

I'm developing tow eclipse plugin, I have the next problem: I have two perspective that manages the same files. I would like to make an association between file extension - editor - perspective. I mean if I open the file extension .XXX in perspective 1 it uses the editor A, but if I open the same file extension .XXX in perspective 2, it uses the editor B. is it possible? Since now, I used the launcher but now I need more differentiation. Thanks. (Sorry, this is one of those "don't do that!" non-answers. :)) As mentioned in the comments, I'd recommend against opening a different editor

Prologue This Q&A is a remake of: How to highlight 3D perspective camera view (frustrum) on topside 2D minimap? which was closed (and failed first reopening cycle) due to lack of info and no response of the original author. However I think this is an interesting question though so I decided to Ask&Answer this myself (this time with all the needed specs). Question Let assume our world is a uniform rectangular square grid (represented by 2D array of tiles) mapped on a plane (let say plane XY ( Z=0.0 ) for simplicity) and is rendered with perspective projection. like this: How to map the

The application I am working on currently requires functionality for Perspective Image Distortion. Basically what I want to do is to allow users to load an image into the application and adjust its perspective view properties based on 4 corner points that they can specify. I had a look at ImageMagic. It has some distort functions with perpective adjustment but is very slow and some certain inputs are giving incorrect outputs. Any of you guys used any other library or algorithm. I am coding in C#. Any pointers would be much appreciated. Thanks This seems to be exactly what you (and I) were