imdraw
(Package: imager) :
Draw image on another image
Draw image on another image
● Data Source:
CranContrib
● Keywords:
● Alias: imdraw
●
0 images
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isoblur
(Package: imager) :
Blur image isotropically.
Blur image isotropically.
● Data Source:
CranContrib
● Keywords:
● Alias: isoblur
●
0 images
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You'll need ImageMagick for formats other than PNG and JPEG. If the image is actually a video, you'll need ffmpeg.
● Data Source:
CranContrib
● Keywords:
● Alias: save.image
●
0 images
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as.data.frame.cimg
(Package: imager) :
Convert a pixel image to a data.frame
This function combines the output of pixel.grid with the actual values (stored in $value)
● Data Source:
CranContrib
● Keywords:
● Alias: as.data.frame.cimg
●
0 images
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add.colour
(Package: imager) :
Add colour channels to an grayscale image
Add colour channels to an grayscale image
● Data Source:
CranContrib
● Keywords:
● Alias: add.colour
●
0 images
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periodic.part
(Package: imager) :
Compute the periodic part of an image, using the periodic/smooth decomposition of Moisan (2009)
Moisan (2009) defines an additive image decomposition im = periodic + smooth where the periodic part shouldn't be too far from the original image. The periodic part can be used in frequency-domain analyses, to reduce the artifacts induced by non-periodicity.
● Data Source:
CranContrib
● Keywords:
● Alias: periodic.part
●
0 images
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imdirac
(Package: imager) :
Generates a "dirac" image, i.e. with all values set to 0 except one.
This small utility is useful to examine the impulse response of a filter
● Data Source:
CranContrib
● Keywords:
● Alias: imdirac
●
0 images
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By default images are stored in xyzc order. Use permute_axes to change that order.
● Data Source:
CranContrib
● Keywords:
● Alias: permute_axes
●
0 images
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imnoise
(Package: imager) :
Generate (Gaussian) white-noise image
A white-noise image is an image where all pixel values are drawn IID from a certain distribution. Here they are drawn from a Gaussian.
● Data Source:
CranContrib
● Keywords:
● Alias: imnoise
●
0 images
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imager.subset
(Package: imager) :
Array subset operator for cimg objects
Internally cimg objects are 4D arrays (stored in x,y,z,c mode) but often one doesn't need all dimensions. This is the case for instance when working on grayscale images, which use only two. The array subset operator works like the regular array [] operator, but it won't force you to use all dimensions. There are easier ways of accessing image data, for example imsub, channels, R, G, B, and the like.
● Data Source:
CranContrib
● Keywords:
● Alias: imager.subset
●
0 images
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providing 
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