Is this correct: this person asked if he could use a photo, you said "no" and he used it anyway?

He removed the photo after you asked him to stop using it, so do you have reason to believe he will continue to use the photo now?

There was a really good post on the topic of copyright law by ole sarge on page 3 of a thread here on UHH in the Photography Discussion section. The thread is titled "Is there a Federal Law?" and the date of the post was dec 29th at http://www.uglyhedgehog.com/t-272757-1.html#4593581

The following is from that post:

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Every photograph has copyright. You don't have to file a copyright with the Federal Government.

http://www.templetons.com/brad/copymyths.html
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I recommend you read the post as well.

overthemoon,

Capturing and Post Processing for HDR is usually a very personal attitude on the part of both the artist and the visiting viewer, you can't please them both.

IMO the final image should look as close to natural as the eye saw it at the time of the visit. We must understand how the Human eye records and the brain recalls the original image. Once this is accomplished we can use HDR to recreate what was seen at the site.

There is a tremendous amount of adjustments in HDR processing if the original captures are taken with the intent of using HDR processing. With that thought in mind you would have a good understanding of some of the limitations involved in the HDR image captures (multiple exposures with Ev compensation). This leads too your Niagara Falls picture earlier today.

The water fall picture looks good for all the reasons pointed out in that thread, but it also shows a limitation in the HDR. It appears all the exposures used were over-exposed on a few of the splashing water fountains. Those are blown out white streams. It is a limitation on the exposures used for the HDR merge.

The correction is learned from experience, and may be caused by the camera sensor itself, but when recognized can be corrected before the exposures are made. This is a case where a ND filter could be used to reduce the exposure value of the splashing water, thereby preventing the camera sensor from clipping the white into blown out white streams.

You would use just enough ND filtration to reduce the white splashing water exposure, set the Exposure values to allow the shutter duration to capture the various exposures you want and capture the power of the rushing water without making the fall look like whipped cream.

It takes practice an experience, and take notes so you can repeat the procedure over and over.

Michael G