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css z-index lost after webkit transform translate3d
...aise and lower the footer's z-index (+/-1) against the rotated element (an img in this case).
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扫码（HarmonyScan）使用指导 · App Inventor 2 中文网
...lumn; align-items: center; } .feedback-pop:hover, .feedback-pop .feedback-img:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } /*手机版：...
Get img thumbnails from Vimeo?
...ery video to get the thumbnail
Here's approximate code in PHP
<?php
$imgid = 6271487;
$hash = unserialize(file_get_contents("http://vimeo.com/api/v2/video/$imgid.php"));
echo $hash[0]['thumbnail_medium'];
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...e for using globalAlpha:
ctx.save();
ctx.globalAlpha = 0.4;
ctx.drawImage(img, x, y);
ctx.restore();
If you need img to be loaded:
var img = new Image();
img.onload = function() {
ctx.save();
ctx.globalAlpha = 0.4;
ctx.drawImage(img, x, y);
ctx.restore()
};
img.src = "http://..."...
href image link download on click
I generate normal links like: <a href="/path/to/image"><img src="/path/to/image" /></a> in a web app.
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How to crop an image in OpenCV using Python
...
It's very simple. Use numpy slicing.
import cv2
img = cv2.imread("lenna.png")
crop_img = img[y:y+h, x:x+w]
cv2.imshow("cropped", crop_img)
cv2.waitKey(0)
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How to embed a video into GitHub README.md?
..., but it works and it's funny ;).
Example:
[](https://youtu.be/vt5fpE0bzSY)
Result:
Use youtube's preview picture
You can also use the picture generated by youtube for your video.
For youtube urls in the form of:
https://www.youtube.com/wa...
A html space is showing as %2520 instead of %20
...fox will encode your space TWICE. Change the html snippet from this:
<img src="C:\Documents and Settings\screenshots\Image01.png"/>
to this:
<img src="file:\\\C:\Documents and Settings\screenshots\Image01.png"/>
or this:
<img src="file://C:\Documents and Settings\screenshots\I...
App Inventor 2 Canvas绘图教程 - 游戏精灵与动画实现 · App Inventor 2 中文网
...lumn; align-items: center; } .feedback-pop:hover, .feedback-pop .feedback-img:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } /*手机版：...
App Inventor 2 TaifunImage 拓展，图像高级处理功能，剪裁，压缩，翻转等 ...
...lumn; align-items: center; } .feedback-pop:hover, .feedback-pop .feedback-img:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } /*手机版：...