Copyright for images can be complex. Consider the following:
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If someone else created the image
➤ You need permission from the photographer or rights holder.
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If you created the image
➤ You own the copyright—unless you photographed something that’s copyrighted (e.g. a painting in a gallery).
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Photographs of people
➤ You need formal permission, unless people are incidental (e.g. passers-by in a street scene).
➤ Use caution with images of minors or sensitive subjects—ethical approval may be needed.
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Images of other artworks (e.g. museum portraits)
➤ Even if you took the photo, you may need permission from the gallery or artist.
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Images from sites like Flickr or blogs
➤ Check the licence (e.g. Creative Commons).
➤ If no licence is stated, assume permission is required.
⚠️ Be cautious: some users upload images they don’t own. Reusing these—even with permission—is risky.