If a picture causes you pain, this is what you can do to get back on track in your daily life: observe the picture, but do not go further than that. An image does not come equipped with pain, it is your reaction to that image that is generating suffering. So just look at it without letting your mind wander in needless mental commentary. See the image simply as it is, without describing or analyzing it. Gently remind yourself, "It's just a picture," and allow it to be, nothing more. The proliferation of your thoughts creates suffering, if you can refrain yourself from letting your mind spin a narrative around it, you will see the picture without clinging to it. The cessation of thoughts equals the cessation of suffering. And that just proves buddhism is a science of the mind.