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Questions tagged [image-rotation]

Image rotation is performing a geometric rotation with certain angle on a particular image.

Image rotation is performing a geometric rotation with certain angle on a particular image. An image can be rotated by a positive angle or negative angle, which will rotate the image clockwise or counterclockwise. Rotating an image by 360 degrees or -360 degrees will actually result in the same image as the original image, while rotating on 180 or -180 degrees will display an inverted copy of the original image.

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Rotation after select UIImage of library

When I chose a portrait photo from the library like that : (source: hostingpics.net) The UIImage returned by the library is rotated. Here is my code : - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage…
Seb
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Monotouch - Correcting upside down image rotation

I have been using mono for a short while and one of the issues I came upon was that loading an image into a CGImage object would end up with the image being flipped vertically. This was the code I was using originally: public static CGImage LoadJPEG…
Louis Sherwood
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using RotateFlip to rotate bitmaps

I am having trouble rotating a scanned document that already has a qrcode on it. I am checking for the qr code but when the code is upside down - i am having trouble flipping the page and trying to read for a qr code again. and i get this error…
Masriyah
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Android RotateAnimation overlapping

working in android last couple of days and i am trying to rotate an arrow by pressing a button. Using RotateAnimation and: setFillAfter(true); arrow remains in last position as supposed to. But when i press button again arrow yes starts to rotate…
Panos Karampis
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How to find the coordinates of UIImage after using CGAffineTransformMakeRotation on an object

I have an uiimage and i rotated the image using CGAffineTransformMakeRotation to the desired angle. Now i wanted to find out the new coordinates of the image that is new x position, y position, width, height of the image using the imageview.center…
iVenky
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Converting coordinates from a frame of reference to another frame of reference

I am trying to determine the accuracy of my object detection system so I am putting in rotated images of the original image(below) at 90 deg, 45 deg, 135 deg, 180 deg etc for the system to detect and convert the points of the detection for each…
user1968818
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Javascript image slider issue

I used the following slideshow code, available at this forum page Here's the code: New Restaurant - Crete
user1558952
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How to slow down a rotate animation gradually

I am developing a roulette wheel app. In which if i tap on center button wheel should rotate for few seconds and then its speed should get slow down gradually. Please guide me in right way if anyone knows. I could able to rotate an imageView with…
thavasidurai
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Rotate widget around its Y axis In QT in 3d space

I would like to rotate a widget around its Y axis (or any axis) in QT exactly the same way as appearing here: Image rotation in 3D space around Y axis I have searched but all what I got 2d transformation like rotate clockwise or counterclockwise I…
Muhammad Nour
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How to customize parameters used on renderscript root function?

Background I'm new to renderscript, and I would like to try some experiments with it (but small ones and not the complex ones we find in the SDK), so I thought of an exercise to try out, which is based on a previous question of mine (using…
android developer
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Android camera image randomly rotated

I've found a very interesting problem. After taking a camera picture (I hold the device in portrait mode, and not rotating), the given photo is sometimes rotated, but not always. I know, some device give always rotated photo, but it can be rotated…
ba-res-ba
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Restart Rotation on an angle

I'm usin Jquery Rotate Plugin for rotating a picture and save the new angle of rotation of it. When someone restart the rotation of this picture, I would like to restart at the same angle but the rotation stop at it's original point and don't loop…
slig36
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Image display based on time

I'm trying to create an image rotator that displays certain images at certain times, but also rotates at other times in the day. When I first created it, I just had it rotate every three seconds. That worked fine. But once I added the code to make…
deadendstreet
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Rotating the same image many times in wp7 silverlight

I use this function for rotating my image: public void rotateMe(Image img, double duration, int degrees, double xPoint, double yPoint) { Duration Time_duration = new Duration(TimeSpan.FromSeconds(duration)); Storyboard…
Hamzeh Soboh
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jQuery - Simple Image Rotator

On fiddle I found a simple rotator and trying to make it work in my death-simple HTML page. The page example is here: Demo
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