rotateClockwise(matrix): n = len(matrix) for i in range(n // 2): for j in range(i, n-i-1): temp = matrix[i, j] matrix[i, j] = matrix[n-1-j, i] matrix[n-1-j, i] = matrix[n-1-i, n-1-j] matrix[n-1-i, n-1-j] = matrix[j, n-1-i] matrix[j, n-1-i...
cols = matrix.get(0).size(); List<List<Integer>> result = new ArrayList<>(); for (int c = 0; c < cols; ++c) { List<Integer> newRow = new ArrayList<>(); for (int r = rows - 1; r >= 0 ; --r) newRow.add(matrix.get(r).get(c)); result.add...
M = cv2.getRotationMatrix2D((img.shape[1]/2, img.shape[0]/2), 45, 1) 在这个例子中,我们获取了一个将图像顺时针旋转45度的旋转矩阵。3. cv.rotatecv.rotate是一个用于执行各种几何变换的函数,其中包括旋转操作。该函数接受两个参数:输入图像和变换类型。变换类型可以是cv2.ROTATE_90_CLOCKWISE(顺时针...
You are given annxn2Dmatrixrepresenting an image, rotate the image by 90 degrees (clockwise). You have to rotate the image in-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation. 英文不好的同学不要慌,请接着看例子: ...
You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise). Note:You have to rotate the imagein-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation. ...
Widgetbuild(BuildContext context){returnGestureDetector(onTap:(){_controller.reset();_controller.forward();widget.onTap();},child:Transform(transform:Matrix4.rotationZ(widget.clockwise?_rad:-_rad),alignment:Alignment.center,child:widget.child,),);} ...
angleSystem.Single Angle of rotation, in radians. Angles are measured clockwise when viewed from the rotation axis (positive side) toward the origin. See Also Matrix.RotateAxis Matrix.Quaternion Matrix.RotateX Matrix.RotateY Matrix.RotateYawPitchRoll...
ROTATE_90_CLOCKWISE, ROTATE_90_COUNTERCLOCKWISE ``` 可以看出它只支持90、180、270这样的特殊角度旋转。 **函数warpAffine支持任意角度的旋转,但通过定义M矩阵实现, 函数原型:** ``` CV_EXPORTS_W void warpAffine( InputArray src, OutputArray dst,//输入与输出图像 ...
Problem # You are given an n x n 2D matrix representing an image. # # Rotate the image by 90 degrees (clockwise). # # Note: # You have to rotate the image in-pl...
* clockwise rotate * first reverse up to down, then swap the symmetry * 1 2 3 7 8 9 7 4 1 * 4 5 6 => 4 5 6 => 8 5 2 * 7 8 9 1 2 3 9 6 3 */ void rotate(vector<vector<int> > &matrix) { reverse(matrix.begin(), matrix.end()); ...