try fix gray border images

Author: PatrickFarley

articles/cognitive-services/Custom-Vision-Service/suggested-tags.md

@@ -46,14 +46,20 @@ The following steps show you how to use the suggested tags feature:
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     > Images with suggested tags are sorted by their prediction uncertainty (lower values indicate higher confidence). You can change the sorting order with the **Sort by uncertainty** option. If you set the order to **high to low**, you can correct the high-uncertainty predictions first and then quickly confirm the low-uncertainty ones.
     * In image classification projects, you can select and confirm tags in batches. Filter the view by a given suggested tag, deselect images that are tagged incorrectly, and then confirm the rest in a batch.
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             > [!div class="mx-imgBorder"]
             > ![Suggested tags are displayed in batch mode for IC with filters.](./media/suggested-tags/ic-batch-mode.png)
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             You can also use suggested tags in individual image mode by selecting an image from the gallery.
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             ![Suggested tags are displayed in individual image mode for IC.](./media/suggested-tags/ic-individual-image-mode.png)
     * In object detection projects, we don't support batch confirmations, but you can still filter and sort by suggested tags for a more organized labeling experience. Thumbnails of your untagged images will show an overlay of bounding boxes indicating the locations of suggested tags. If you don't select a suggested tag filter, all of your untagged images will appear without overlaying bounding boxes.
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             > [!div class="mx-imgBorder"]
             > ![Suggested tags are displayed in batch mode for OD with filters.](./media/suggested-tags/od-batch-mode.png)
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             To confirm object detection tags, you need to apply them to each individual image in the gallery.
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             ![Suggested tags are displayed in individual image mode for OD.](./media/suggested-tags/od-individual-image-mode.png)
 1. Start the training process again.
 1. Repeat the preceding steps until you're satisfied with the suggestion quality.