firelab-general/templates/projected-area.html

{% extends "base.html" %}
{% block content %} 

<form action="/projected_area_results" method="POST" enctype="multipart/form-data">
    <h2>Projected Area Interface</h2>

    <img src="#" id="img-preview" type="file"/>
    <br>

    <input id="img-upload" type="file" name="file" accept=".png,.jpg,.jpeg,.tiff" value="Choose Image"/>

    <h4>Settings</h4>

    <label for="area_threshold">Area threshold (to remove dust particles) in px</label>
    <input type="number" name="area_threshold" value="250"/>
    <br>

    <label for="min_display_threshold">Minimum display threshold (in px)</label>
    <input type="number" name="min_display_threshold" value="300"/>
    <br>

    <br>
    <input type="submit" value="Generate Projected Sizes"/>
</form>

<!-- <script src="/img_preview.js" onload="setOnChange()"></script> -->
<script>
    let imgPreview = document.getElementById('img-preview');
    let imgUpload = document.getElementById('img-upload');
    imgUpload.onchange = event => {
        const [file] = imgUpload.files;
        if (file) {
            console.log(file)
            imgPreview.src = URL.createObjectURL(file);
        }
    };
</script>

{% endblock %}