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<meta name="viewport" content="width=device-width, initial-scale=1.0" /><link rel="canonical" href="https://jomjol.github.io/AI-on-the-edge-device-docs/ROI-Configuration/" />
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<title>ROI (Region of Interest) Configuration - AI on the Edge Device</title>
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<title>ROI (Region of Interest) - AI on the Edge Device</title>
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<li class="toctree-l1"><a class="reference internal" href="../FAQs/">Frequently Asked Questions</a>
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<p class="caption"><span class="caption-text">Configuration</span></p>
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<li class="toctree-l1"><a class="reference internal" href="../Choosing-the-Model/">Model Selection</a>
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<p class="caption"><span class="caption-text">Advanced</span></p>
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<li class="toctree-l1"><a class="reference internal" href="../Build-Instructions/">Build the project yourself</a>
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<p class="caption"><span class="caption-text">API's</span></p>
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<li class="toctree-l1"><a class="" href="https://github.com/jomjol/AI-on-the-edge-device/releases">Releases</a>
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@@ -84,55 +65,19 @@
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<li class="toctree-l1"><a class="" href="https://github.com/jomjol/AI-on-the-edge-device/discussions">Join a Discussions</a>
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<p class="caption"><span class="caption-text">Asorted Pages</span></p>
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<p class="caption"><span class="caption-text">Configuration</span></p>
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<li class="toctree-l1"><a class="reference internal" href="../Addditional-Information/">Addditional Information</a>
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<li class="toctree-l1"><a class="reference internal" href="../Demo-Mode/">Demo Mode</a>
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<li class="toctree-l1"><a class="reference internal" href="../Learn-models-with-your-own-images/">Learn models with your own images</a>
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<li class="toctree-l1"><a class="reference internal" href="../Migrate-Old-Config-To-New-Config/">Migration from water-meter „old“ to water-meter “AI-on-the-edge-device”</a>
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<li class="toctree-l1"><a class="reference internal" href="../OTA---Update-Firmware-and-Web-Interface/">Over-The-Air (OTA) Update</a>
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</li>
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<li class="toctree-l1 current"><a class="reference internal current" href="./">ROI (Region of Interest) Configuration</a>
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<li class="toctree-l1 current"><a class="reference internal current" href="./">ROI (Region of Interest)</a>
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<ul class="current">
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<li class="toctree-l2"><a class="reference internal" href="#1-correct-setup-of-roi">1. Correct Setup of ROI</a>
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<li class="toctree-l2"><a class="reference internal" href="#correct-setup-of-roi">Correct Setup of ROI</a>
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<ul>
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<li class="toctree-l3"><a class="reference internal" href="#1-image-sharpness">1. Image Sharpness</a>
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<li class="toctree-l3"><a class="reference internal" href="#image-sharpness">Image Sharpness</a>
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</li>
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<li class="toctree-l3"><a class="reference internal" href="#2-horizontal-alignment">2. Horizontal Alignment</a>
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<li class="toctree-l3"><a class="reference internal" href="#horizontal-alignment">Horizontal Alignment</a>
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</li>
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<li class="toctree-l3"><a class="reference internal" href="#3-correct-size-for-roi">3. Correct Size for ROI</a>
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<li class="toctree-l3"><a class="reference internal" href="#correct-size-for-roi">Correct Size for ROI</a>
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</li>
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<li class="toctree-l3"><a class="reference internal" href="#4-model-selection">4. Model Selection</a>
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<li class="toctree-l3"><a class="reference internal" href="#model-selection">Model Selection</a>
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<ul>
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<li class="toctree-l4"><a class="reference internal" href="#dig-class11-configuration">dig-class11 Configuration</a>
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</li>
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</li>
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</ul>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Release-creation/">Release creation</a>
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<li class="toctree-l1"><a class="reference internal" href="../Graphical-Configuration/">Graphical Configuration</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Choosing-the-Model/">Model Selection</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Neural-Network-Types/">Neural Network Types</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../ota/">Over-The-Air (OTA) Update</a>
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</li>
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</ul>
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<p class="caption"><span class="caption-text">Advanced</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../Integration-Home-Assistant/">Integration into Home Assistant</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../External-LED/">External LED</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../rolling-installation/">Living on the edge</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Configuration-Parameter-Details/">Configuration Parameter Details</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Configuration/">Configuration</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Watermeter-specific-analog---digital-transition/">Analog/Digital Transition on Watermeters</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Learn-models-with-your-own-images/">Learn a model with your own images</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Correction%20Algorithm/">Correction Algorithm</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Additional-Information/">Additional Information</a>
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</li>
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</ul>
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<p class="caption"><span class="caption-text">Troubleshooting</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../Error-Codes/">Error Codes</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Error-Debugging/">Error Debugging</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Frequent-Reboots/">Frequent Reboots</a>
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</li>
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</ul>
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<p class="caption"><span class="caption-text">API's</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../REST-API/">REST API</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../MQTT-API/">MQTT API</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Influx-DB/">Influx DB</a>
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</li>
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</ul>
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<p class="caption"><span class="caption-text">Development</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../Build-Instructions/">Build the Project</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Demo-Mode/">Demo Mode</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Upload-files-by-script/">Scripted File Upload</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Testing/">Testing</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../Watermeter-specific-analog---digital-transition/">Understanding the problem</a>
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<li class="toctree-l1"><a class="reference internal" href="../Release-creation/">Preparing for Release</a>
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</li>
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</ul>
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<p class="caption"><span class="caption-text">Old Pages (no longer maintained)</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../outdated--Integrated-Functions/">Integrated Functions</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../outdated--Gasmeter-Log-Downloader/">Gasmeter Log-Downloader</a>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="../outdated--Migrate-Old-Config-To-New-Config/">Migration from water-meter „old“ to water-meter “AI-on-the-edge-device”</a>
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</li>
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</ul>
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<p class="caption"><span class="caption-text">Asorted Pages</span></p>
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<ul>
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</ul>
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</div>
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</nav>
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<div class="rst-content"><div role="navigation" aria-label="breadcrumbs navigation">
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<ul class="wy-breadcrumbs">
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<li><a href=".." class="icon icon-home" alt="Docs"></a> »</li>
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<li>Asorted Pages »</li>
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<li>ROI (Region of Interest) Configuration</li>
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<li>Configuration »</li>
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<li>ROI (Region of Interest)</li>
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<li class="wy-breadcrumbs-aside">
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<a href="https://github.com/jomjol/AI-on-the-edge-device-docs/edit/main/docs/ROI-Configuration.md" class="icon icon-github"> Edit on GitHub</a>
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<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
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<h1 id="roi-region-of-interest-configuration">ROI (Region of Interest) Configuration</h1>
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<h1 id="roi-region-of-interest">ROI (Region of Interest)</h1>
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<p>General remark:</p>
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<blockquote>
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<p>You are using a neural network approach which is trained to fit as many different type of meters as possible. The accuracy will never be 100%. It is normal to see a missing reading once in a while. There there are several precautions to detect this. For details see the section <code>PostProcessing</code> on the configuration page.</p>
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</li>
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</ol>
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<hr />
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<h2 id="1-correct-setup-of-roi">1. Correct Setup of ROI</h2>
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<h2 id="correct-setup-of-roi">Correct Setup of ROI</h2>
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<p>Please proceed in the following order!</p>
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<p>Don't forget to save after each step!</p>
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<h3 id="1-image-sharpness">1. Image Sharpness</h3>
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<h3 id="image-sharpness">Image Sharpness</h3>
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<p>Ensure a sharp image of the camera by adjusting the focal length of the ESP OV2640 camera.
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<strong>Adjust the focus for the clearest possible image</strong> See <a href="https://github.com/jomjol/water-meter-picture-provider/blob/master/ESP32-CAM_Lens_Modification.md">these instructions</a> for help.</p>
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<h3 id="2-horizontal-alignment">2. Horizontal Alignment</h3>
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<h3 id="horizontal-alignment">Horizontal Alignment</h3>
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<p>Ensure an <strong>exact horizontal alignment</strong> of the number via the alignment / reference setup:</p>
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<table>
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<thead>
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</tr>
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</tbody>
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</table>
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<h3 id="3-correct-size-for-roi">3. Correct Size for ROI</h3>
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<h3 id="correct-size-for-roi">Correct Size for ROI</h3>
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<p>Choose the right size of the ROI:</p>
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<blockquote>
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<p>The configuration of ROIs differs a bit on the model you choose. Below you find the differences between the different AI models. Pick the one you think fits best your purpose. If you don't get to good result, try another model.</p>
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</blockquote>
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<h3 id="4-model-selection">4. Model Selection</h3>
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<h3 id="model-selection">Model Selection</h3>
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<h4 id="dig-class11-configuration">dig-class11 Configuration</h4>
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<p>dig-class11 - Models recognize the <strong>complete digit only</strong>. Here it is not relevant if the ROI fits the Border of the digit window.</p>
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<p>For this model, there should be a border of 20% of the image size around the number itself. This border is shown in the ROI setup image by the inner thinner rectangle. This rectangle should fit perfectly around the number when the number has not started to rotate to the next position: </p>
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</div>
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</div><footer>
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<div class="rst-footer-buttons" role="navigation" aria-label="Footer Navigation">
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<a href="../OTA---Update-Firmware-and-Web-Interface/" class="btn btn-neutral float-left" title="Over-The-Air (OTA) Update"><span class="icon icon-circle-arrow-left"></span> Previous</a>
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<hr/>
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</span>
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<span><a href="../OTA---Update-Firmware-and-Web-Interface/" style="color: #fcfcfc">« Previous</a></span>
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