High resolution partial panoramas - Revision history

Erik Krause: marked as out of date

2008-09-21T21:39:37Z

marked as out of date

Zarl: /* Cropping */ typo, minor clarification

2008-01-07T07:37:12Z

‎Cropping: typo, minor clarification

Erik Krause: replaced some ?, removed signature as this is already documented in the history

2008-01-06T23:18:44Z

replaced some ?, removed signature as this is already documented in the history

Erik Krause: 1 revision(s)

2007-03-21T18:09:02Z

1 revision(s)

Bruno: clean up redirecting links

2007-03-21T18:07:00Z

clean up redirecting links

Bruno: clean up redirecting links

2007-03-15T23:10:25Z

clean up redirecting links

Erik Krause: /* Merging images together */ typo

2006-07-20T14:59:13Z

‎Merging images together: typo

WikiSysop: 34 revision(s)

2006-07-13T20:28:01Z

34 revision(s)

WikiSysop: 1 revision(s)

2006-07-13T19:56:40Z

1 revision(s)

Bruno: note cropped TIFF option

2006-05-08T12:23:05Z

note cropped TIFF option

← Older revision		Revision as of 21:39, 21 September 2008
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	[[Category:Tutorial:Nice to know]]		[[Category:Tutorial:Nice to know]]
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		+	{{Outdated}}

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 [[Image:Cropping.gif|Two examples for cropping]]
-This image shows two examples. In ths first one, the tripod was not leveled. The result it a bent image. If you need the whole width, you loose height. To increase the height you can narrow the width. In the second example some images on the top left and bottom right are missing, resulting in many different croppings.
+This image shows two examples. In the first one, the tripod was not leveled. The result it a bent image. If you need the whole width, you loose height. To increase the height you can narrow the width. In the second example some images on the top left and bottom right are missing, resulting in many different croppings.
-If you have enough space always save an uncropped version containing all adjustment layers and anything in order to have the possibility to do things new or better if you find some errors in the final version.
+If you have enough disk space always save an uncropped version containing all adjustment layers and anything in order to have the possibility to do things new or better if you find some errors in the final version.
 == Printing ==

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 == Taking the photos ==
-Compose your image. Choose the clipping you want. And better take some more images than necessary, you can�t go back and take some extra photos later.
+Compose your image. Choose the clipping you want. And better take some more images than necessary, you can't go back and take some extra photos later.
 Set up and [[level your equipment]]. Set your camera to manual mode, manual white balance and manual focus. Choose a focus that is right for the main item of the panorama and choose an aperture number of f/8, f/11 or higher in order to maximize the depth of field.
-If you shoot multiple rows � which you most likely need to do not to have a narrow stripe of an image when you�re done � shoot all rows from left to right or from right to left. Don�t go zigzag with the rows.
+If you shoot multiple rows - which you most likely need to do not to have a narrow stripe of an image when you're done - shoot all rows from left to right or from right to left. Don't go zigzag with the rows.
-Shoot as quickly as you can. The faster you are, the lesser are the differences between the photos. Differences are mainly lighting differences that are caused by moving clouds or simply the moving sun. The eye doesn�t recognize the change very well but you will recognize it on your photos.
+Shoot as quickly as you can. The faster you are, the lesser are the differences between the photos. Differences are mainly lighting differences that are caused by moving clouds or simply the moving sun. The eye doesn't recognize the change very well but you will recognize it on your photos.
 If you will have the sun inside your panorama set up the tripod head such that the sun is in the middle at the top edge of one image surrounded by sky only. Use your (or your assistants) hand or hat to throw a shadow on the lens for all other images. Take the image with the sun in it two times: One with the sun visible and one with the sun obscured from the top of the image (your hand or whatever you take should be surrounded by sky only).
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 If you know the [[vignetting]] effect of your lens, remove the vignetting from the photos. (See [[how to obtain vignetting calibration samples]] and [[remove vignetting]].)
-Remove Noise from your images before you merge them. There are two basic types of noise for digital cameras: One is the �normal� color and luminance noise that simply occurs in most situations. This noise is not necessarily constant among a number of images.
+Remove Noise from your images before you merge them. There are two basic types of noise for digital cameras: One is the normal color and luminance noise that simply occurs in most situations. This noise is not necessarily constant among a number of images.
 The best way to remove it is to use a noise reduction tool like [http://www.imagenomic.com/ Noiseware,] [http://www.neatimage.com/ Neat Image] or [http://www.picturecode.com/ Noise Ninja.] Neat Image is available as actionable photoshop plugin as well as a batch processing standalone. This makes it easy to apply the same type and amount of noise reduction to a series of images.
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 For more infos see the [[Noise_Removal]] page or [http://www.epaperpress.com/psphoto/preNoise.html ePaperPress noise reduction] (go to Preparation -> Noise Reduction).
-The second type of noise occurs with long exposure times. You will most likely recognize it as green dots when shooting at night. This type of noise tends not to move. The dots are at the same position over many images. But it increases by the time you use the [[CCD]], which means the first image of your panorama will have the least, the last one the most noise. To remove this noise, take a black image in between the shots. If you have enough capacity, take one after each shot, otherwise every ten shots or so. Taking one black image after each other also leads to even more noise because the [[CCD]] chip is used even more heavily. Find an approximation that suits your needs before taking the first �real� night panorama. Set these black images in a Layer on top of a normal shot and set it to difference. This should remove that noise. See [[removing noise due to long exposures]] for more details.
+The second type of noise occurs with long exposure times. You will most likely recognize it as green dots when shooting at night. This type of noise tends not to move. The dots are at the same position over many images. But it increases by the time you use the [[CCD]], which means the first image of your panorama will have the least, the last one the most noise. To remove this noise, take a black image in between the shots. If you have enough capacity, take one after each shot, otherwise every ten shots or so. Taking one black image after each other also leads to even more noise because the [[CCD]] chip is used even more heavily. Find an approximation that suits your needs before taking the first real night panorama. Set these black images in a Layer on top of a normal shot and set it to difference. This should remove that noise. See [[removing noise due to long exposures]] for more details.
 A different way of noise reduction is discribed in [[NoiseRemove]]. It's a tool that uses multiple images to reduce noise.
-To keep the quality of the images, don�t compress them much after this step. If you have enough space, save them as [[TIFF ]] files. You can use [[JPEG]] images to increase the speed of the PanoTools GUI application in the next step (you won't decrease memory usage this way since the images have to be handled uncompressed in memory).
+To keep the quality of the images, don't compress them much after this step. If you have enough space, save them as [[TIFF ]] files. You can use [[JPEG]] images to increase the speed of the PanoTools GUI application in the next step (you won't decrease memory usage this way since the images have to be handled uncompressed in memory).
 == Setting control points and calculate images ==
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 == Cropping ==
-Don�t crop the whole image to the maximum size. Sometimes you missed some images to the left and right or your tripod was not leveled. This decreases the maximum size of the image. But in this case you usually get a larger height if you decrease the width and vice versa. So crop for the desired output ratio rather than for the whole image.
+Don't crop the whole image to the maximum size. Sometimes you missed some images to the left and right or your tripod was not leveled. This decreases the maximum size of the image. But in this case you usually get a larger height if you decrease the width and vice versa. So crop for the desired output ratio rather than for the whole image.
 [[Image:Cropping.gif|Two examples for cropping]]
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 Another possibility is to shoot on color negative film and use a good film scanner to get the whole dynamic range (up to 14 f-stops). More from [http://www.path.unimelb.edu.au/~bernardk/tutorials/360/technical/hdri/ Big Ben] Samples at [http://www.erik-krause.de/cn_hdr Erik Krause's page]
 [[Category:Tutorial:Nice to know]]

← Older revision		Revision as of 18:07, 21 March 2007
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	edited by [[User:Erik Krause\|Erik Krause]]		edited by [[User:Erik Krause\|Erik Krause]]

−	~~[[Category:Tutorial]]~~[[Category:Tutorial:Nice to know]]	+	[[Category:Tutorial:Nice to know]]

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 If you know how to use your equipment and if you use it the right way, this saves you much time of post processing. This is true for all panoramas, but especially those described here tend to consist of a large number of images with a large number or errors.
-[[calibrate panoramic head|Calibrate]] your panoramic head with your camera. If you have a zoom lens, make sure you set the zoom to an exactly reproducible value. Talking about �all in one� camera, some of these have an initial zoom setting they will set when you turn them on. Use this setting if you don�t want to use the maximum or minimum zoom.
+[[calibrate panoramic head|Calibrate]] your panoramic head with your camera. If you have a zoom lens, make sure you set the zoom to an exactly reproducible value. Talking about 'all in one' camera, some of these have an initial zoom setting they will set when you turn them on. Use this setting if you don't want to use the maximum or minimum zoom.
 Shoot some test images before you shoot something you want to keep. And write a short list of things you have to do when you set up.
-The final resolution depends on the resolution of your camera and the [[field of view]] of the photos you take. See this [[calculator]] to calculate the sizes.
+The final resolution depends on the resolution of your camera and the [[Field of View]] of the photos you take. See this [[calculator]] to calculate the sizes.
 == Taking the photos ==

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 I personally like to have full control over the process and am not really satisfied with the results [[enblend]] generates although they are good enough for many people and definitely for many online usages of panoramas. Hence we use [[Photoshop]] here to merge the images together.
-Load the [[PSD]] file if PanoTools generated one or import the [[TIFF]]s in a single [[PSD]] file using Erik Krause�s [[stitching actions]]. If Photoshop tells you it can't open the images due to a program error, have a look at [[Photoshop limitations#opening large TIFFs with Photoshop|opening large TIFFs with Photoshop]].
+Load the [[PSD]] file if PanoTools generated one or import the [[TIFF]]s in a single [[PSD]] file using Erik Krause's [[stitching actions]]. If Photoshop tells you it can't open the images due to a program error, have a look at [[Photoshop limitations#opening large TIFFs with Photoshop|opening large TIFFs with Photoshop]].
 If there is need to adjust brightness or color of single images never change a layer directly. Use adjustment layers or grouped adjustment layers whenever possible.

← Older revision	Revision as of 20:28, 13 July 2006
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← Older revision		Revision as of 12:23, 8 May 2006
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	Save the resulting images as "Multiple [[TIFF]]" or as "Layered [[PSD]]" with the optimum suggested resolution.		Save the resulting images as "Multiple [[TIFF]]" or as "Layered [[PSD]]" with the optimum suggested resolution.
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		+	Note that if you have many source images, each layer/file in the output will be mostly empty - This potentially consumes vast amounts of processing time, disc space and computer memory. A solution is to use the [[cropped TIFF]] option of the [[nona]] or [[PTmender]] stitchers to process only areas of the output image that contain real data.

	== Merging images together ==		== Merging images together ==