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How to convert an image to base64 encoding?
...
I think that it should be:
$path = 'myfolder/myimage.png';
$type = pathinfo($path, PATHINFO_EXTENSION);
$data = file_get_contents($path);
$base64 = 'data:image/' . $type . ';base64,' . base64_encode($data);
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How do you upload images to a gist?
...ry nice. The file extension of the gist makes a difference. I tried foobar.png and saw only text. Obviously, it must be *.md to attempt rendering of the markdown.
– Synesso
Jan 18 '19 at 0:38
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Fastest way to extract frames using ffmpeg?
... incurring more quality loss through quantization by transcoding to JPEG. (PNG is also lossless but tends to take much longer than JPEG to encode.)
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Regular expression to return text between parenthesis
...t; import re
>>> s = u'abcde(date=\'2/xc2/xb2\',time=\'/case/test.png\')'
>>> re.search(r'\((.*?)\)',s).group(1)
u"date='2/xc2/xb2',time='/case/test.png'"
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StackOverflow程序员推荐：每个程序员都应读的30本书 - 杂谈 - 清泛网 - 专...
...“平衡的艺术”）。
29. 《Test-Driven Development by Example. / 测试驱动开发》
前面已经提到的很多书都启发了我，并影响了我，但这本书每位程序员都应该读。它向我展示了单元测试和TDD的重要性，并让我很快上手。 – Curro
我...
if a ngSrc path resolves to a 404, is there a way to fallback to a default?
...an image and to replace the src. (Plunker)
Html:
<img ng-src="smiley.png" err-src="http://google.com/favicon.ico" />
Javascript:
var app = angular.module("MyApp", []);
app.directive('errSrc', function() {
return {
link: function(scope, element, attrs) {
element.bind('error',...
How to get the children of the $(this) selector?
...e img element like below
<div class="mydiv">
<img src="test.png" alt="3">
<img src="test.png" alt="4">
</div>
then you can't use upper code to find alt value of second img element. So you can try this:
$(this).find("img:last-child").attr("alt")
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Save image from URL by paperclip
...mply :
user.picture_from_url "http://www.google.com/images/logos/ps_logo2.png"
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How to overlay images
...his:
<img style="background:url(thumbnail1.jpg)" src="magnifying_glass.png" />
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Control the dashed border stroke length and distance between strokes
...xels wide by 15 pixels high and the gaps are currently 5px wide. It is a .png with transparency.
This is what it looks like in photoshop when zoomed in:
This is what it looks like to scale:
Controlling gap and stroke length
To create wider / shorter gaps or strokes, widen / shorten the gaps...