run_extract_eyes.sh: line 26: [: 1: unary operator expected

[shanshanhao]

run_extract_eyes.sh: line 26: [: 1: unary operator expected
who can help me result this problem? thanks a lot!

[wuzhiqiao]

run_extract_eyes.sh: line 26: [: 1: unary operator expected who can help me result this problem? thanks a lot!

delete $ in line 8 and 26，like this: while [ $i -le 1 ]