3 ms·
What Are My Photos Revealing About Me?
- zzo38computer 7y agoI don't take photographs and put in computer available to the public, although sometimes other people have done so and given to me the picture, I have stripped the metadata (using exiftool, which can also read or alter metadata too). Note, you could also enter false metadata. Of course there may still be data that is part of the picture itself; for some purposes, you can crop it. If it is JPEG, I think that losslessly cropping by a multiple of 8 would be possible, although I don't know what program will do this.
- tropo 7y agojpegtran -crop WxH+X+Y photo.jpg > cropped.jpg The upper left corner of the result has to be on a compression block boundary. Those blocks are 8x8, but the Cb and Cr channels may be half resolution and thus 16x16 in your image.