大约有 2,700 项符合查询结果（耗时：0.0183秒） [XML]
How can I extract a good quality JPEG image from a video file with ffmpeg?
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Output the images in a lossless format such as PNG:
ffmpeg.exe -i 10fps.h264 -r 10 -f image2 10fps.h264_%03d.png
Then use another program (where you can more precisely specify quality, subsampling and DCT method – e.g. GIMP) to convert the PNGs you want to JPEG.
It ...
Query for array elements inside JSON type
... its elements:
WITH reports(data) AS (
VALUES ('{"objects":[{"src":"foo.png"}, {"src":"bar.png"}]
, "background":"background.png"}'::json)
)
SELECT *
FROM reports r, json_array_elements(r.data#>'{objects}') obj
WHERE obj->>'src' = 'foo.png';
The CTE (WITH query) just su...
How to determine the first and last iteration in a foreach loop?
... {
?>
<div class="sub_node" style="display:none">
<img src="../images/dtree/join.gif" align="absmiddle" style="padding-left:2px;" />
<a id="'.$val['xsubcatid'].'" href="javascript:void(0)" onclick="getProduct(this , event)" class="sub_node_links" >
<...
android button selector
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You can use this code:
<Button
android:id="@+id/img_sublist_carat"
android:layout_width="70dp"
android:layout_height="68dp"
android:layout_centerVertical="true"
android:layout_marginLeft="625dp"
android:contentDescription=""
android:background="@drawable/img_sublist_carat_...
Can I change the height of an image in CSS :before/:after pseudo-elements?
...e block, however.
.pdflink:after {
background-image: url('/images/pdf.png');
background-size: 10px 20px;
display: inline-block;
width: 10px;
height: 20px;
content:"";
}
See the full Compatibility Table at the MDN.
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Open file dialog and select a file using WPF controls and C#
...tton1 I want to browse my files to search only for image files (type jpg, png, bmp...).
And when I select an image file and click Ok in the file dialog I want the file directory to be written in the textbox1.text like this:
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What's so bad about in-line CSS?
...ss inline, by which I mean: <element style='color:red'> or even <img style='float:right'> It's very convenient, but doesn't reflect actual selector specificity in a real css file later, and if you keep it, you'll regret the maintenance load later.
Prototype with <style> instead
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Setting the filter to an OpenFileDialog to allow the typical image formats?
I have this code, how can I allow it to accept all typical image formats? PNG, JPEG, JPG, GIF?
11 Answers
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How to add onload event to a div element
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You can trigger some js automatically on an IMG element using onerror, and no src.
<img src onerror='alert()'>
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Using sed and grep/egrep to search and replace
...owed by a regular expression containing about 10 unions, so like:
.jpg | .png | .gif etc. This works well, now I would like to replace all strings found with .bmp
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