I am looking for some constructive criticism of what I might be missing in this attempt to marry together three different skill sets. The skill sets are Windows 7 Paint, a Digital Camera and a 24 Inch Carpenters Level.Here is the set up. I have an RV lot that has a clear view of a 1/2 mile distant mall in Laughlin NV. I meticulously set up the carpenters level to be visually "bubble" level. Then I set my camera on the level and took this picture.It sure looks like I have a good confirmation that this setup reflects the remote mall and my camera, for all practical purposes, to be remarkably level when compared to each other IN PAINT. What do you think?

I guess I don't understand what you are saying. Yes, it looks level to me. What's your point?

What are you using Paint for??? The photo viewer works well for me. If you want to do panoramas in addition, make sure your camera is level front and back also. If so, adjacent pictures will fit together better.

Harvard wrote:I am looking for some constructive criticism of what I might be missing in this attempt to marry together three different skill sets. The skill sets are Windows 7 Paint, a Digital Camera and a 24 Inch Carpenters Level.Here is the set up. I have an RV lot that has a clear view of a 1/2 mile distant mall in Laughlin NV. I meticulously set up the carpenters level to be visually "bubble" level. Then I set my camera on the level and took this picture.It sure looks like I have a good confirmation that this setup reflects the remote mall and my camera, for all practical purposes, to be remarkably level when compared to each other IN PAINT. What do you think?Wrong.It may appear or look "level" but the earth is not level, plumb or square and neither is what your lens optics does..You are trying to take something which is curved (Earth) and flatten it out using a optical lens which adds additional distortion to the already curved Earth and trying to use a "linear" output device (monitor) to display it is flat, level and plumb..You are missing a major component.. Your eyes and brain.. They actually can compensate enough to make that picture appear rather level and flat.. But in reality the pix is distorted..

OP here:What would you say if I tried to demonstrate, using paint, that the mall is within 0.2 Degrees of the level camera?

bcsdguy wrote:I guess I don't understand what you are saying. Yes, it looks level to me. What's your point?Yeah, pretty much what I was thinking.

Win 7 Paint, Digital Camera and Carpenter Level

18 Replies

Harvard
Explorer
Jan 26, 2015
fj12ryder wrote:
Again, what's the point?

Is it feasible to measure angles from pictures, as I am proposing in this link? I was hoping to have some "paint savy" opinions.

Measuring Angles from Digital Pictures
fj12ryder
Explorer III
Jan 26, 2015
Again, what's the point?
Harvard
Explorer
Jan 26, 2015
Harvard wrote:
OP here:

What would you say if I tried to demonstrate, using paint, that the mall is within 0.2 Degrees of the level camera?

For example, using Win Paint, find the two x,y coordinates:

1024, 1189px
1530, 1190px

Notice they both fall on the top of a parallel redish/orange banner in the center of the picture.

TANGENT = OPPOSITE / ADJACENT
OPPOSITE = 1190 - 1189 = 1 pixel
ADJACENT = 1530 - 1024 = 506 pixels
TANGENT = 0.001976284
ARCTAN 0.001976284 = 0.1132 Degrees.

Do you have any concerns with the repeatability of this measurement?
Have you tried it yourself in paint?
fj12ryder
Explorer III
Jan 26, 2015
bcsdguy wrote:
I guess I don't understand what you are saying. Yes, it looks level to me. What's your point?
Yeah, pretty much what I was thinking.
Harvard
Explorer
Jan 26, 2015
OP here:

What would you say if I tried to demonstrate, using paint, that the mall is within 0.2 Degrees of the level camera?
Gdetrailer
Explorer III
Jan 26, 2015
Harvard wrote:
I am looking for some constructive criticism of what I might be missing in this attempt to marry together three different skill sets. The skill sets are Windows 7 Paint, a Digital Camera and a 24 Inch Carpenters Level.

Here is the set up. I have an RV lot that has a clear view of a 1/2 mile distant mall in Laughlin NV. I meticulously set up the carpenters level to be visually "bubble" level. Then I set my camera on the level and took this picture.

It sure looks like I have a good confirmation that this setup reflects the remote mall and my camera, for all practical purposes, to be remarkably level when compared to each other IN PAINT. What do you think?

Wrong.

It may appear or look "level" but the earth is not level, plumb or square and neither is what your lens optics does..

You are trying to take something which is curved (Earth) and flatten it out using a optical lens which adds additional distortion to the already curved Earth and trying to use a "linear" output device (monitor) to display it is flat, level and plumb..

You are missing a major component.. Your eyes and brain.. They actually can compensate enough to make that picture appear rather level and flat.. But in reality the pix is distorted..
Johno02
Explorer
Jan 26, 2015
What are you using Paint for??? The photo viewer works well for me. If you want to do panoramas in addition, make sure your camera is level front and back also. If so, adjacent pictures will fit together better.
bcsdguy
Explorer
Jan 26, 2015
I guess I don't understand what you are saying. Yes, it looks level to me. What's your point?

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Win 7 Paint, Digital Camera and Carpenter Level

18 Replies

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