To misperceive or mistake something or someone visually; to misread/identify incorrectly.
暗くて人を見間違ってしまった。
It was dark and I mistook the person I saw.
新聞の写真を見間違えると名前を取り違えることがあるから注意して読んでください。
Be careful when reading—if you misread a newspaper photo you might mix up names.
この絵と本物を見間違う人はいないだろう。
No one would likely mistake this painting for the real thing.