I'm using Magento 2.3.4, and now I'm extending the category form to add new field input image like this:
app/code/Vendor/Module/view/adminhtml/ui_component/category_form.xml
<field name="banner_io" sortOrder="40" formElement="imageUploader">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="source" xsi:type="string">category</item>
</item>
</argument>
<settings>
<elementTmpl>ui/form/element/uploader/image</elementTmpl>
<dataType>string</dataType>
<label translate="true">Banner IO</label>
<comment translate="true">Dimension: 900px X 354px</comment>
<visible>true</visible>
<required>false</required>
<scopeLabel>[STORE VIEW]</scopeLabel>
</settings>
<formElements>
<imageUploader>
<settings>
<required>false</required>
<uploaderConfig>
<param xsi:type="url" name="url" path="catalog/category_image/upload"/>
</uploaderConfig>
<previewTmpl>Magento_Catalog/image-preview</previewTmpl>
<openDialogTitle>Media Gallery</openDialogTitle>
<initialMediaGalleryOpenSubpath>catalog/category</initialMediaGalleryOpenSubpath>
<allowedExtensions>jpg jpeg gif png</allowedExtensions>
<maxFileSize>4194304</maxFileSize>
</settings>
</imageUploader>
</formElements>
</field>
in here I can set the max file size, how I can set minimum/maximum width and height?
