SYNOPSIS
pkinfo -i input [options]DESCRIPTION
pkinfo retrieves basic information about a raster data set (similar to gdalinfo(1)). An important difference with gdalinfo is that pkinfo only reports the information that is requested via the corresponding command line option, whereas gdalinfo provides all basic information at once. The reported information is in a format that can be used as input for other pktools utilities. This mechanism facilitates command substitution in the bash scripting language.OPTIONS
- -i filename, --input filename
- Input image file
- -bb, --bbox
- Shows bounding box
- -te, --te
- Shows bounding box in GDAL format: xmin ymin xmax ymax
- -c, --center
- Image center in projected X,Y coordinates
- -ct, --colortable
- Shows colour table
- -ns, --nsample
- Number of samples in image
- -nl, --nline
- Number of lines in image
- -nb, --nband
- Show number of bands in image
- -b band, --band band
- Band specific information
- -dx, --dx
- Gets resolution in x (in m)
- -dy, --dy
- Gets resolution in y (in m)
- -mm, --minmax
- Shows min and max value of the image
- -min, --minimum
- Shows min value of the image
- -max, --maximum
- Shows max value of the image
- -stats, --statistics
- Shows statistics (min,max, mean and stdDev of the image)
- -a_srs, --a_srs
- Shows projection of the image
- -geo, --geo
- Gets geotransform
- -il, --interleave
- -f, --filename
- Shows image filename
- -cover, --cover
- Print filename to STDOUT if current image covers the provided coordinates via bounding box, (x y) coordinates or extent of vector file
- -x value, --xpos value
- x pos
- -y value, --ypos value
- y pos
- -r, --read
- Reads row y (in projected coordinates if geo option is set, otherwise in image coordinates, 0 based)
- -ref, --reference
- Gets reference pixel (lower left corner of center of gravity pixel)
- -of, --oformat
- Gets driver description
- -e filename, --extent filename
- Gets boundary from vector file
- -ulx ULX, --ulx ULX
- Upper left x value bounding box
- -uly ULY, --uly ULY
- Upper left y value bounding box
- -lrx LRX, --lrx LRX
- Lower right x value bounding box
- -lry LRY, --lry LRY
- Lower right y value bounding box
- -ot, --otype
- -d, --description
- Returns image description
- -meta, --meta
- Shows meta data
- -nodata value, --nodata value
- Sets no data value(s) for calculations (nodata values in input image)
EXAMPLE
show number of bands in raster image.tif
pkinfo -i image.tif -nb
show maximum value of band 1 (starting from 0) of raster image.tif
pkinfo -i image.tif -max -b 1
read (dump) upper left pixel value for bands 3,2,1
pkinfo -i image.tif -x 0 -y 0 -r -b 3 -b 2 -b 1
read (dump) pixel value at this geographic location (x,y) for bands 3,2,1
pkinfo -i image.tif -x 3528120 -y 4329681 -geo -r -b 3 -b 2 -b 1
show bounding box (-ulx -uly -lrx -lry) in geo coordinates for image1.tif
pkinfo -i image1.tif -b
show bounding box (-ulx -uly -lrx -lry) in geo coordinates for each image (and union and intersect)
pkinfo -i image1.tif -i image2.tif -i image3.tif -b
show the reference pixel (centre of gravity) for image1.tif, treating 0 and 255 as NO VALUE
pkinfo -i image1.tif --mask 0 --mask 255 -ref
read (dump) pixel value at image centre for band 0
pkinfo -i image.tif $(pkinfo -i image.tif -c) -geo -r
read (dump) pixel value in band 0 (default) for all images in current directory that cover this geographic location
pkinfo $(for IMAGE in modis_2010*.tif; do pkinfo -i $IMAGE --cover -x 4215500 -y 2534000; done) -x 4215500 -y 253400