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getting the X/Y coordinates of a mouse click on an image with jQuery [duplicate]
...op of the image.
Here is an example:
$(document).ready(function() {
$('img').click(function(e) {
var offset = $(this).offset();
alert(e.pageX - offset.left);
alert(e.pageY - offset.top);
});
});
I've made a live example here and here is the source.
To calculate how far from the ...
How to crop an image using PIL?
... 1600. We will crop image from 400, 400 to 800, 800
from PIL import Image
img = Image.open("ImageName.jpg")
area = (400, 400, 800, 800)
cropped_img = img.crop(area)
cropped_img.show()
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impr...
Refresh image with a new one at the same url
...arameter to the URL that changes only when the file does, e.g.:
echo '<img src="image.jpg?m=' . filemtime('image.jpg') . '">';
(That's PHP server-side code, but the important point here is just that a ?m=[file last-modified time] querystring is appended to the filename).
Pros: 100% reliabl...
WhatsApp如何成为销售钻戒的店面？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...现代生活中更为常见：一对恋人，每人都低头盯着自己的智能手机，窝在床上，跟钻戒销售人员聊着他们最新、最受欢迎的设计。这一切都在WhatsApp上的群聊里进行。
Rare Pink是一家初创公司，销售定制钻戒，该公司表示，自2015...
How do I get a YouTube video thumbnail from the YouTube API?
...four generated images. They are predictably formatted as follows:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
https://img.youtube.com...
jQuery How to Get Element's Margin and Padding?
... mean by "total padding", you may be able to do something like this:
var $img = $('img');
var paddT = $img.css('padding-top') + ' ' + $img.css('padding-right') + ' ' + $img.css('padding-bottom') + ' ' + $img.css('padding-left');
...
Ternary Operators in JavaScript Without an “Else”
...propriate:
defaults.slideshowWidth = defaults.slideshowWidth || obj.find('img').width()+'px';
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jQuery callback on image load (even when the image is cached)
...ough checking and triggering the event based off .complete, like this:
$("img").one("load", function() {
// do stuff
}).each(function() {
if(this.complete) {
$(this).load(); // For jQuery < 3.0
// $(this).trigger('load'); // For jQuery >= 3.0
}
});
Note the change from ....
Is there a best practice for generating html with javascript
...and is really, really straightforward:
var t = $.template('<div><img src="${url}" />${name}</div>');
$(selector).append( t , {
url: jsonObj.url,
name: jsonObj.name
});
I say go the cool route (and better performing, more maintainable), and use templating.
...
cv2.imshow command doesn't work properly in opencv-python
...
imshow() only works with waitKey():
import cv2
img = cv2.imread('C:/Python27/03323_HD.jpg')
cv2.imshow('ImageWindow', img)
cv2.waitKey()
(The whole message-loop necessary for updating the window is hidden in there.)
...