标签: image-rotation
如何以支持 autograd 的方式围绕其中心旋转 PyTorch 图像张量？
我想围绕它的中心随机旋转图像张量（B、C、H、W）（我认为是 2d 旋转？）。我想避免使用 NumPy 和 Kornia，这样我基本上只需要从 torch 模块导入。我也没有使用torchvision.transforms，因为我需要它与 autograd 兼容。本质上，我正在尝试为 DeepDream 等torchvision.transforms.RandomRotation()可视化技术创建一个 autograd 兼容版本（因此我需要尽可能避免伪影）。
import torch
import math
import random
import torchvision.transforms as transforms
from PIL import Image
# Load image
def preprocess_simple(image_name, image_size):
Loader = transforms.Compose([transforms.Resize(image_size), transforms.ToTensor()])
image = Image.open(image_name).convert('RGB')
return Loader(image).unsqueeze(0)
# Save image
def deprocess_simple(output_tensor, output_name):
output_tensor.clamp_(0, 1)
Image2PIL = transforms.ToPILImage()
image = Image2PIL(output_tensor.squeeze(0))
image.save(output_name)
# Somehow rotate tensor around it's center
def rotate_tensor(tensor, radians):
...
return rotated_tensor
# Get a random angle …5
推荐指数
推荐指数
1
解决办法
解决办法
5293
查看次数
查看次数
Android：当视图改变方向时切换高度和宽度
我确实使用 PhotoView 库来放大。现在，当用户单击按钮时，我准备旋转 PhotoView，高度和宽度将旋转。所以宽度小于屏幕高度。这导致我在旋转图像视图之前无法像往常一样获得全屏缩放。
因此，任何解决方案都可以使旋转后的新宽度或高度全屏显示。
示例：这是缩放图像，它不会像旋转之前那样放大整个屏幕
android image-rotation android-imageview android-orientation android-photoview
5
推荐指数
推荐指数
1
解决办法
解决办法
1627
查看次数
查看次数
如何平滑地并排对齐旋转的位图而不出现抖动？
我当前的程序绘制一个旋转的位图（64x64），并通过再次绘制它来将其平铺在屏幕上，但根据位图右上角的计算位置（旋转后）添加偏移量，它工作正常，但我遇到了一些抖动网格在运动。
如果我对画布变换执行相同的操作，则不会出现抖动。
这是一个比较两者的示例：https ://editor.p5js.org/onirom/sketches/A5D-0nxBp
将鼠标移动到画布的左侧部分以使用自定义旋转算法，将鼠标移动到右侧部分以使用画布算法。
似乎某些图块因单个像素而错位，从而导致网格抖动。
有没有一种方法可以消除网格抖动，而无需将其作为单遍进行并保持相同的插值方案？
这是子像素正确性问题吗？
这是一些代码：
let tileImage = null
function preload() {
tileImage = loadImage('data:image/png;base64,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')
}
function setup() {
createCanvas(512, 512)
frameRate(14)
tileImage.loadPixels()
}
function computeRotatedPoint(c, s, x, y) {
return { x: x * c - y * s, y: x * s + y * c }
}
currentTileWidth = 0
currentTileHeight = 0
// draw a rotated bitmap at screen position ox, oy
function drawRotatedBitmap(c, s, ox, oy) {
let dcu = …5
推荐指数
推荐指数
1
解决办法
解决办法
357
查看次数
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Jquery fadeIn导致滚动顶部,我该如何解决？
我有jQuery fadeIn(或fadeOut)方法的问题.我建立一个文章旋转器,一切正常,但是当页面滚动到底部并且文章旋转时出现问题,fadeIn(或fadeOut)方法导致滚动到文章位置.我认为这些方法,改变了身体的css top属性,但我不知道如何避免这个!任何的想法？？？
这里的代码
function rotate(direction)
{
if($('articles > article:visible:first') == 'undefined')
$currentArticle = $('articles > article:first');
else
$currentArticle = $('articles > article:visible:first');
if($currentArticle.attr('id') == $('articles > article:last').attr('id'))
$next = $('articles > article:first');
else
$next = $currentArticle.next();
if($currentArticle.attr('id') == $('articles > article:first').attr('id'))
$prev = $('articles > article:last');
else
$prev = $currentArticle.prev();
if($do_animation)
{
$currentArticle.fadeOut(1000,function(){
switch(direction)
{
case 1:
$next.fadeIn(1000);
break;
case -1:
$prev.fadeIn(1000);
break;
}
if($('.rotate_show'))
$('.rotate_show').removeClass('rotate_show');
$('article_number > btn[id|="'+$next.attr('id')+'"]').addClass('rotate_show');
});
}
else
return false;
}
好的网站http://kario91.altervista.org/ultimate文本来自joomla这是完整的网站!变量工作正常,没有问题.尝试减少浏览器窗口并滚动底部
4
推荐指数
推荐指数
1
解决办法
解决办法
3999
查看次数
查看次数
如何在Android中一起执行放大/缩小,旋转
我想应用拖动,放大/缩小,使用多点触控旋转到两个图像.一个图像放在另一个的顶部.在应用这些行动之后
通过应用操作进行更改后,从上面的两个图像.
我成功应用缩放/拖动到顶部图像,从中创建新图像.
主要问题是
1.如何对两张图像应用动作,一次一张图像？
2.如何从当前显示的图像切换到另一个图像(我应该使用哪种布局)？
3.用户如何使用多点触控旋转或缩放图像？
我缺少什么,对不起列表 - :)
4
推荐指数
推荐指数
1
解决办法
解决办法
5846
查看次数
查看次数
如何在C#/ Windows窗体中翻转/旋转标签？
如何在C#Windows窗体中翻转/旋转标签？
我将背景图像设置为我的标签.
在每个时间间隔,它将三个像素移动到右侧.当它到达表格结束位置时,我需要翻转并转回标签.
我尝试了以下方式,但我没有得到解决方案.
private void timer1_Tick(object sender, EventArgs e){
if (label2.Location.X < this.Width)
label2.Location = new Point(label2.Location.X + incr, label2.Location.Y);
else
{
incr = -2;
label2.Location = new Point(label2.Location.X - 50, label2.Location.Y);
label1.Image.RotateFlip();
}
this.Refresh();
}
4
推荐指数
推荐指数
1
解决办法
解决办法
1万
查看次数
查看次数
翻转图像Python
我试图水平翻转图像.
由此:
对此:
但我一直在镜像中反映它.
像这样:
我试图扭转x轴索引,我不明白为什么它被分割.
def flip(picture):
height = getHeight(picture)
width = getWidth(picture)
newPicture = makeEmptyPicture(width, height)
x2 = width-1
for x in range(0, width):
y2 = 0
for y in range(0, height):
pxl = getPixel(picture, x, y)
newPxl = getPixel(picture, x2, y2)
color = getColor(pxl)
setColor(newPxl, color)
y2 = y2+1
x2 = x2-1
return picture
我剩下的代码:
def d():
f = pickAFile()
picture = makePicture(f)
newPicture = copy(picture)
writePictureTo(newPicture, r"D:\FOLDER\newPic4.jpg")
explore(newPicture)
4
推荐指数
推荐指数
3
解决办法
解决办法
2万
查看次数
查看次数
如何在OpenCV中获取旋转矩形的顶点？
我warpAffine在OpenCV中使用旋转矩形.现在我想获得这个旋转矩形的四个顶点(四个点的x和y位置),而不是将其旋转回来.经过几个小时的搜索,我得不到任何结果.有人可以帮我吗？谢谢.
4
推荐指数
推荐指数
1
解决办法
解决办法
5200
查看次数
查看次数
如何在图片框中旋转图像
我正在制作一个winforms应用程序.我希望实现的功能之一是在家庭形式上的旋转装置.
装载主页时,应将鼠标悬停在齿轮图片上,并应将其旋转到位.
但到目前为止,我所拥有的只是RotateFlip而且只是翻转图片.
当鼠标悬停在齿轮上时,有没有办法让齿轮转动到位？
我到目前为止的代码是:
Bitmap bitmap1;
public frmHome()
{
InitializeComponent();
try
{
bitmap1 = (Bitmap)Bitmap.FromFile(@"gear.jpg");
gear1.SizeMode = PictureBoxSizeMode.AutoSize;
gear1.Image = bitmap1;
}
catch (System.IO.FileNotFoundException)
{
MessageBox.Show("There was an error." +
"Check the path to the bitmap.");
}
}
private void frmHome_Load(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(5000);
}
private void frmHome_FormClosed(object sender, FormClosedEventArgs e)
{
Application.Exit();
}
private void pictureBox1_MouseHover(object sender, EventArgs e)
{
bitmap1.RotateFlip(RotateFlipType.Rotate180FlipY);
gear1.Image = bitmap1;
}
就像我说的,我只是想转动装备.我试图在Windows窗体应用程序中执行此操作.使用C#.框架4
4
推荐指数
推荐指数
2
解决办法
解决办法
2万
查看次数
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如何在Matlab上找到稳定视频帧的旋转角度
考虑我有一个稳定的视频帧,其中稳定只通过旋转和平移(没有缩放):
如图所示,图像的右侧是先前像素的对称,即旋转后的黑色区域被对称填充.我添加了一条红线,表明它更清楚.
我想找到我稍后会使用的旋转角度.我可以通过SURF或SIFT功能完成此操作,但是,在实际情况下,我不会有原始帧.
我可能会通过蛮力找到角度,但我想知道是否有更好更优雅的解决方案.注意,对称部分的强度值与原始部分的精度值不完全相同.我已经检查了一些值,例如,V字的键盘上的右上像素是 [51 49 47]在原始部件而是[50 50 47]在对称拷贝,这意味着相应的像素不被保证是相同的RGB值.
我将在Matlab或python上实现它,并使用完成视频稳定ffmpeg.
编辑:我只有稳定的视频,无法访问原始视频或由ffmpeg生成的文件.
任何帮助/建议表示赞赏,
4
推荐指数
推荐指数
1
解决办法
解决办法
288
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