Ghex

When we try to open the png image the image doesn't open.I put the image in hex editor to find if all components were in place which wasn't actually. So i corrected the critical chunks.Magic number,Png to PNG,IDATA,IHDR THE file opened which was a screenshot from matlab with a large line  in between ..-. .-.. .- --. --. .... . -..- ..-. .-. .- -.-. - .. --- -. .- - . -.. -- --- .-. ... . . -. -.-. --- -.. . .-. .When i decoded it in morse code editor i found it out to be FLAGGHEXFRACTIONATEDMORSEENCODER which is flag{GHEXFRACTIONATEDMORSEENCODER}