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How can I extract a good quality JPEG image from a video file with ffmpeg?
...quality.
The scale is linear with double the qscale being roughly half the bitrate.
Recommend trying values of 2-5.
You can use a value of 1 but you must add the -qmin 1 output option (because the default is -qmin 2).
To output a series of images:
ffmpeg -i input.mp4 -qscale:v 2 output_%03d.jpg
Se...
libpng warning: iCCP: known incorrect sRGB profile
... ancillary chunks except tRNS and gAMA
-reduce does lossless color-type or bit-depth reduction
In the console output you should see Removed the sRGB chunk, and possibly more messages about chunk removals. You will end up with a smaller, optimized PNG file. As the command will overwrite the origina...
How can I confirm a database is Oracle & what version it is using SQL?
...-------------------------------
Oracle Database 10g Release 10.2.0.3.0 - 64bit Production
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for Solaris: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
...
How to tell if JRE or JDK is installed
...dows or linux ??
– Maciej Cygan
Dec 10 '14 at 21:04
@MaciejCygan, I'm using windows. Yea, I've got a JDK installed too...
Convert SVG to image (JPEG, PNG, etc.) in the browser
...
answered Oct 20 '10 at 8:35
jbeard4jbeard4
11.6k44 gold badges5252 silver badges6666 bronze badges
...
How to save an image to localStorage and display it on the next page?
...
Firstly, I grab my image with getElementByID, and save the image as a Base64. Then I save the Base64 string as my localStorage value.
bannerImage = document.getElementById('bannerImg');
imgData = getBase64Image(bannerImage);
localStorage.setItem("imgData", imgData);
Here is the function that con...
Run an app on a multiple devices automatically in Android Studio
...lt on August 9, 2019
JRE: 1.8.0_202-release-1483-b03 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows Server 2016 10.0
In this update they have added in-built option to run application on multiple devices.
The IDE has a new drop-down menu that lets you quickly select which
devi...
Detect URLs in text with JavaScript
...
Crescent FreshCrescent Fresh
105k2323 gold badges149149 silver badges138138 bronze badges
...
坐等升级！Win10终极正式版迎里程碑 - 资讯 - 清泛网 - 专注IT技能提升
坐等升级！Win10终极正式版迎里程碑Windows 10今年会有两次大的更新，五月更新已经推送，而接下来更新的版本为20H2。据外媒最新消息称，Windows 10 20H2已经达到了宣布普遍
Windows 10今年会有两次大的更新，五月更新已经推送，...
How do I give text or an image a transparent background using CSS?
...a and filters.
Screenshots proof of results:
This is when using the following code:
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" >
<title>An XHTML 1.0 Strict standard template</title>
<meta http-equiv="content-type" content="tex...