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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...
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.)
...
image processing to improve tesseract OCR accuracy
...turn bmap;
}
//SetGrayscale
public Bitmap SetGrayscale(Bitmap img)
{
Bitmap temp = (Bitmap)img;
Bitmap bmap = (Bitmap)temp.Clone();
Color c;
for (int i = 0; i < bmap.Width; i++)
{
for (int j = 0; j &...