Questions & Answers about Resimde simetri var.
The suffix -de is the locative case ending, meaning “in” or “on.” So resimde = “in the picture.”
Because of Turkish vowel harmony, words with front vowels (e, i, ö, ü) take -de, while words with back vowels (a, ı, o, u) take -da. Since resim has the front vowel i, we use -de.