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Preview an image before it is uploaded
....readAsDataURL(input.files[0]); // convert to base64 string
}
}
$("#imgInp").change(function() {
readURL(this);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form runat="server">
<input type='file' id="imgInp" />...
Convert Base64 string to an image file? [duplicate]
...path = md5(time().uniqid()).".jpg"; $decoded=base64_decode($base64_string_img); file_put_contents("uploads/".$filename_path,$decoded);
– Rizwan Gill
Feb 6 '15 at 12:09
...
Image library for Python 3
...de.QtCore import *
from PySide.QtGui import *
app = QCoreApplication([])
img = QImage('input.jpg')
g = QPainter(img)
g.setRenderHint(QPainter.Antialiasing)
g.setBrush(QColor(img.pixel(20, 20)))
g.drawEllipse(QPoint(20, 20), 10, 10)
g.end()
img.save('output.png')
But please note that this solut...
Matplotlib plots: removing axis, legends and white spaces
...import random
import matplotlib.pyplot as plt
data = random.random((5,5))
img = plt.imshow(data, interpolation='nearest')
img.set_cmap('hot')
plt.axis('off')
plt.savefig("test.png", bbox_inches='tight')
share
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...
How to display Base64 images in HTML?
...har set.
<div>
<p>Taken from wikpedia</p>
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot" />
</div>
You can try this b...
How to take screenshot of a div with JavaScript?
...
Yep, you can have an inline dialog box with an img that has its src set to the data: URI. However, that isn't really necessary -- you can just put the canvas itself in the inline dialog box; users can right click it and save the current state as an image.
...
Ignore mouse interaction on overlay image
...nd is with CSS Styling:
#reflection_overlay {
background-image:url(../img/reflection.png);
background-repeat:no-repeat;
width: 195px;
pointer-events:none;
}
pointer-events attribute works pretty good and is simple.
...
Necessary to add link tag for favicon.ico?
...mages folder or something alike. For example:
<link rel="icon" href="_/img/favicon.png">
This diferent location may even be a CDN, just like SO seems to do with <link rel="shortcut icon" href="http://cdn.sstatic.net/stackoverflow/img/favicon.ico">.
To learn more about using other fil...
How to check if a file is a valid image file?
...
I have just found the builtin imghdr module. From python documentation:
The imghdr module determines the type
of image contained in a file or byte
stream.
This is how it works:
>>> import imghdr
>>> imghdr.what('/tmp/bass')
'g...
JavaScript: Get image dimensions
...
var img = new Image();
img.onload = function(){
var height = img.height;
var width = img.width;
// code here to use the dimensions
}
img.src = url;
...