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Is crop() Limited to 16 Bit Pixel Values?
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I am working with Landsat 8 satellite data. In the scene data that I am analyzing, the band 10 pixel values are:
low: 0
high: 39087
After I crop the raster, the pixel values are now:
low: 0
high: 32767
The high is curious since that is the maximum value of a signed 16 bit integer.
Here is my code:
> boundary
class : SpatialPolygonsDataFrame
features : 11
extent : 637437.7, 785925.9, 4208959, 4380055 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
variables : 22
names : OBJECTID_1, OBJECTID, STATEFP, COUNTYFP, COUNTYNS, GEOID, NAME, NAMELSAD, LSAD, CLASSFP, MTFCC, CSAFP, CBSAFP, METDIVFP, FUNCSTAT, ...
min values : 1, 10, 17, 013, 00424208, 17013, Calhoun, Calhoun County, 06, C7, G4020, 476, 41180, NA, A, ...
max values : 9, 9, 29, 510, 01784865, 29510, Warren, Warren County, 25, H1, G4020, 476, 41180, NA, F, ...
> extent(boundary)
class : Extent
xmin : 637437.7
xmax : 785925.9
ymin : 4208959
ymax : 4380055
> band_10_crop <- crop(band_10, extent(boundary))
> band_10_crop
class : RasterLayer
dimensions : 5703, 4950, 28229850 (nrow, ncol, ncell)
resolution : 30, 30 (x, y)
extent : 637425, 785925, 4208955, 4380045 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
data source : C:/Users/xxx/AppData/Local/Temp/RtmpYvDjWO/raster/r_tmp_2019-04-24_151922_244_04468.grd
names : LC08_L1TP_024033_20180707_20180717_01_T1_B10
values : 0, 32767 (min, max)
Is this a limitation of crop() or am I misusing the function?
Note, I am running 64-bit R 3.4.4 on Windows 7.
Thanks!
raster r clip
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
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Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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I am working with Landsat 8 satellite data. In the scene data that I am analyzing, the band 10 pixel values are:
low: 0
high: 39087
After I crop the raster, the pixel values are now:
low: 0
high: 32767
The high is curious since that is the maximum value of a signed 16 bit integer.
Here is my code:
> boundary
class : SpatialPolygonsDataFrame
features : 11
extent : 637437.7, 785925.9, 4208959, 4380055 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
variables : 22
names : OBJECTID_1, OBJECTID, STATEFP, COUNTYFP, COUNTYNS, GEOID, NAME, NAMELSAD, LSAD, CLASSFP, MTFCC, CSAFP, CBSAFP, METDIVFP, FUNCSTAT, ...
min values : 1, 10, 17, 013, 00424208, 17013, Calhoun, Calhoun County, 06, C7, G4020, 476, 41180, NA, A, ...
max values : 9, 9, 29, 510, 01784865, 29510, Warren, Warren County, 25, H1, G4020, 476, 41180, NA, F, ...
> extent(boundary)
class : Extent
xmin : 637437.7
xmax : 785925.9
ymin : 4208959
ymax : 4380055
> band_10_crop <- crop(band_10, extent(boundary))
> band_10_crop
class : RasterLayer
dimensions : 5703, 4950, 28229850 (nrow, ncol, ncell)
resolution : 30, 30 (x, y)
extent : 637425, 785925, 4208955, 4380045 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
data source : C:/Users/xxx/AppData/Local/Temp/RtmpYvDjWO/raster/r_tmp_2019-04-24_151922_244_04468.grd
names : LC08_L1TP_024033_20180707_20180717_01_T1_B10
values : 0, 32767 (min, max)
Is this a limitation of crop() or am I misusing the function?
Note, I am running 64-bit R 3.4.4 on Windows 7.
Thanks!
raster r clip
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I am working with Landsat 8 satellite data. In the scene data that I am analyzing, the band 10 pixel values are:
low: 0
high: 39087
After I crop the raster, the pixel values are now:
low: 0
high: 32767
The high is curious since that is the maximum value of a signed 16 bit integer.
Here is my code:
> boundary
class : SpatialPolygonsDataFrame
features : 11
extent : 637437.7, 785925.9, 4208959, 4380055 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
variables : 22
names : OBJECTID_1, OBJECTID, STATEFP, COUNTYFP, COUNTYNS, GEOID, NAME, NAMELSAD, LSAD, CLASSFP, MTFCC, CSAFP, CBSAFP, METDIVFP, FUNCSTAT, ...
min values : 1, 10, 17, 013, 00424208, 17013, Calhoun, Calhoun County, 06, C7, G4020, 476, 41180, NA, A, ...
max values : 9, 9, 29, 510, 01784865, 29510, Warren, Warren County, 25, H1, G4020, 476, 41180, NA, F, ...
> extent(boundary)
class : Extent
xmin : 637437.7
xmax : 785925.9
ymin : 4208959
ymax : 4380055
> band_10_crop <- crop(band_10, extent(boundary))
> band_10_crop
class : RasterLayer
dimensions : 5703, 4950, 28229850 (nrow, ncol, ncell)
resolution : 30, 30 (x, y)
extent : 637425, 785925, 4208955, 4380045 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
data source : C:/Users/xxx/AppData/Local/Temp/RtmpYvDjWO/raster/r_tmp_2019-04-24_151922_244_04468.grd
names : LC08_L1TP_024033_20180707_20180717_01_T1_B10
values : 0, 32767 (min, max)
Is this a limitation of crop() or am I misusing the function?
Note, I am running 64-bit R 3.4.4 on Windows 7.
Thanks!
raster r clip
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am working with Landsat 8 satellite data. In the scene data that I am analyzing, the band 10 pixel values are:
low: 0
high: 39087
After I crop the raster, the pixel values are now:
low: 0
high: 32767
The high is curious since that is the maximum value of a signed 16 bit integer.
Here is my code:
> boundary
class : SpatialPolygonsDataFrame
features : 11
extent : 637437.7, 785925.9, 4208959, 4380055 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
variables : 22
names : OBJECTID_1, OBJECTID, STATEFP, COUNTYFP, COUNTYNS, GEOID, NAME, NAMELSAD, LSAD, CLASSFP, MTFCC, CSAFP, CBSAFP, METDIVFP, FUNCSTAT, ...
min values : 1, 10, 17, 013, 00424208, 17013, Calhoun, Calhoun County, 06, C7, G4020, 476, 41180, NA, A, ...
max values : 9, 9, 29, 510, 01784865, 29510, Warren, Warren County, 25, H1, G4020, 476, 41180, NA, F, ...
> extent(boundary)
class : Extent
xmin : 637437.7
xmax : 785925.9
ymin : 4208959
ymax : 4380055
> band_10_crop <- crop(band_10, extent(boundary))
> band_10_crop
class : RasterLayer
dimensions : 5703, 4950, 28229850 (nrow, ncol, ncell)
resolution : 30, 30 (x, y)
extent : 637425, 785925, 4208955, 4380045 (xmin, xmax, ymin, ymax)
coord. ref. : +proj=utm +zone=15 +datum=WGS84 +units=m +no_defs +ellps=WGS84 +towgs84=0,0,0
data source : C:/Users/xxx/AppData/Local/Temp/RtmpYvDjWO/raster/r_tmp_2019-04-24_151922_244_04468.grd
names : LC08_L1TP_024033_20180707_20180717_01_T1_B10
values : 0, 32767 (min, max)
Is this a limitation of crop() or am I misusing the function?
Note, I am running 64-bit R 3.4.4 on Windows 7.
Thanks!
raster r clip
raster r clip
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
asked 15 mins ago
Michael WohlstadterMichael Wohlstadter
366
366
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Michael Wohlstadter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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