<div dir="ltr"><div>Dear ,</div><div><br></div><div>from the scicv toolbox I use the new_VideoWriter - function:  
  
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        <pre><span class="gmail-default">videoWriter = </span><span class="gmail-functionid">new_VideoWriter</span><span class="gmail-default">(filename, fourcc, fps, frameSize)<br><br><span style="font-family:arial,sans-serif"><br></span></span></pre><pre><span style="font-family:arial,sans-serif"><span class="gmail-default">Everything fine so far, except: <br><br>There are artefacts in the final video., which I guess are connected to compression.<br></span></span></pre><pre><span class="gmail-default"><span style="font-family:arial,sans-serif">Here are some lines from my code:</span><br><br><span style="color:rgb(0,0,0)"><span style="color:rgb(0,0,0)">videoWriter</span> <span style="color:rgb(92,92,92)">=</span> <span style="color:rgb(50,185,185)">new_VideoWriter</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">outPath</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(50,185,185)">CV_FOURCC</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">M</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">P</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">4</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">2</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(0,0,0)">frameRate</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(50,185,185)">size</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">img</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(0,0,0)">;</span>

<span style="color:rgb(160,32,240)">if</span> <span style="color:rgb(92,92,92)">~</span><span style="color:rgb(50,185,185)">VideoWriter_isOpened</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">videoWriter</span><span style="color:rgb(74,85,219)">)</span> <span style="color:rgb(160,32,240)">then</span>
    <span style="color:rgb(50,185,185)">disp</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(188,143,143)">"</span><span style="color:rgb(188,143,143)">Cannot create video file: </span><span style="color:rgb(188,143,143)">"</span> <span style="color:rgb(92,92,92)">+</span> <span style="color:rgb(0,0,0)">outPath</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(0,0,0)">;</span>
<span style="color:rgb(160,32,240)">end</span>

<span style="color:rgb(160,32,240)">for</span> <span style="color:rgb(0,0,0)">i</span> <span style="color:rgb(92,92,92)">=</span> <span style="color:rgb(188,143,143)">1</span><span style="color:rgb(255,170,0)">:</span><span style="color:rgb(0,0,0)">nrOfFiles</span>
    <span style="color:rgb(0,0,0)">img</span> <span style="color:rgb(92,92,92)">=</span> <span style="color:rgb(50,185,185)">imread</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">inPath</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">i</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(0,0,0)">;</span>
    <span style="color:rgb(50,185,185)">VideoWriter_write</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">videoWriter</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(0,0,0)">img</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(0,0,0)">;</span>
    <span style="color:rgb(50,185,185)">disp</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">i</span><span style="color:rgb(74,85,219)">)</span>
<span style="color:rgb(160,32,240)">end</span>

<span style="color:rgb(50,185,185)">delete_VideoWriter</span><span style="color:rgb(74,85,219)">(</span><span style="color:rgb(0,0,0)">videoWriter</span><span style="color:rgb(74,85,219)">)</span><span style="color:rgb(0,0,0)">;</span><br><span style="font-family:arial,sans-serif"><br></span></span></span></pre><pre><span style="font-family:arial,sans-serif"><span class="gmail-default"><b>Question 1:</b> What other formats are possible for "<span style="color:rgb(50,185,185)">CV_FOURCC</span><span style="color:rgb(74,85,219)"></span>"?    <br>I just used    <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">M</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">P</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">4</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(0,0,0)">,</span> <span style="color:rgb(188,143,143)">'</span><span style="color:rgb(188,143,143)">2</span><span style="color:rgb(188,143,143)">'</span><span style="color:rgb(74,85,219)"></span>      , because it's the only mentioned in the help.</span></span></pre><pre><span style="font-family:arial,sans-serif"><span class="gmail-default"><br></span></span></pre><pre><span class="gmail-default"><span style="font-family:arial,sans-serif"><b>Question 2:</b> What format should - ideally - the input images have? Currently I use BMP's, created with xs2bmp.</span><br><span style="font-family:arial,sans-serif"><br></span></span></pre><pre><span style="font-family:arial,sans-serif"><span class="gmail-default">Thank you,<br></span></span></pre><pre><span style="font-family:arial,sans-serif"><span class="gmail-default">Philipp<br></span></span></pre><pre><span class="gmail-default"><br></span></pre>
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