image-rotation

问题 Simple easy one. I am trying to rotate image inside divs and cycle back to the first one when the end of my array has been reached. Can someone please help point me out where I am going wrong in my code here? It seems that when it gets to the second image, the index never returns back to zero to start with the first image in my array again. var images = new Array ('.advert1', '.advert2'); var index = 0; function rotateImage() { $(images[index]).fadeOut('fast', function() { index++; $(images

问题 I want to rotate an image about the z axis using java. I tried to search for ways to do that but it involves complex matrix manipulations and it works on 3d models and stuff. I will resort to that if there is no other way but would like to know if there are any other alternatives for this. I simply need to rotate an image about z axis and nothing else. EDIT This is what I need exactly: I have an image like this: And I want to convert it to something of this sort: I did this using processing.

问题 I have an already developed a Laravel web app. I've just discovered that whenever I upload an image taken from a mobile phone it rotates and if the image px is bigger than the containers then the image is cut partially as I have kept overflow as hidden. I have heard of the image intervention package but i don't know how to apply it to my app, if there is any other way to resolve then issue without any additional package then that would be of great help. profile-avatar{ width: 420px; height

问题 I need to rotate an image from my Ruby/Rails application and I've been using ImageMagick through the RMagick gem. I've tried both the command line tool (i.e. convert ) and the API (e.g. Magick::Image#rotate ) and in both cases the performance is more than 50 times worse than the corresponding Java operation in java.awt.geom.AffineTransform , per https://code.google.com/p/zxing/issues/detail?id=1745#c21 and the corresponding response (i.e. more than a second vs. 10s of milliseconds). I've

问题 I want to use python3 with OpenCV packages to rotate an image in a degree 15 and rotate it back. However, the code below seem does not work but I think there no logic error in the codes. In the "NEAREST" window, the image is rotated correctly but in the "NEAREST-OK-RESTORE" window the image is not rotate back to its original position ( showed in "original" window ). #! /usr/bin/env python3 #! -*- coding:utf-8 -*- import cv2 import numpy as np imgmat = cv2.imread('./lena.jpg',255) print(hex(id

问题 I am using Fabric.js Canvas on top of OpenSeadragon(osd). I am trying to create a compass/rotater widget on top of the osd image, which will rotate the osd image. It should zoom and pan with the osd image, but should not rotate with the osd image. Things are getting tidy when i use viewer.viewport.setRotation(angle); Osd Image rotates, but the location of the Fabric canvas objects also change with it, even though i have set the objects to be in the center of the image. Here is the codePen

问题 I want to do some serious image augmentations on my own dataset because it is really small. Tensorflow provides the image library to do all the augmentation, which is very convenient. But there is no "rotation" functionality. I know there is an issue tracked here, but it is so long and looks complicated. Is there any simple way/function to do image rotation in tensorflow? thank you very much. 回答1: If you want to use your own image rotation, you could probably do that with py_func, PIL and

问题 How can I draw an image to Pixmap, but rotated by some angle, like I can do when drawing on Batch? There is no Pixmap method that has an angle as parameter, like batch drawing methods have. 回答1: Ok, here is the code I managed to make (actually to borrow and adjust from here: Rotate Bitmap pixels ): public Pixmap rotatePixmap (Pixmap src, float angle){ final int width = src.getWidth(); final int height = src.getHeight(); Pixmap rotated = new Pixmap(width, height, src.getFormat()); final double

问题 I want to use the CImg library (http://cimg.sourceforge.net/) to rotate an image with an arbitrary angle (the image is read by Qt which should not perform the rotation): QImage img("sample_with_alpha.png"); img = img.convertToFormat(QImage::Format_ARGB32); float angle = 45; cimg_library::CImg<uint8_t> src(img.bits(), img.width(), img.height(), 1, 4); cimg_library::CImg<uint8_t> out = src.get_rotate(angle); // Further processing: // Data: out.data(), out.width(), out.height(), Stride: out

问题 I need to rotate a view which have some buttons. With the finger movement, view should also rotate along with it's child views accordingly. Till now I have implemented this: private RelativeLayout mCircle; private double mCurrAngle = 0; private double mPrevAngle = 0; int i = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mCircle = (RelativeLayout) findViewById(R.id.circle); mCircle.setOnTouchListener