Usage: imcat [options] fname1 fname2 etc. Puts a set images into an image matrix (IM)
montage of NX by NY images. The minimum set of input is N images (N >= 1). If need be, the default is to reuse images until the desired NX by NY size is achieved.
See options -zero_wrap and -image_wrap for more detail.
- -scale_image SCALE_IMG: Multiply each image IM(i,j) in output
- image matrix IM by the color or intensity of the pixel (i,j) in SCALE_IMG.
- -scale_pixels SCALE_PIX: Multiply each pixel (i,j) in output image
- by the color or intensity of the pixel (i,j) in SCALE_IMG. SCALE_IMG is automatically resized to the resolution of the output image.
- -scale_intensity\ : Instead of multiplying by the color of
- pixel (i,j), use its intensity (average color)
-gscale FAC: Apply FAC in addition to scaling of -scale_* options
- -rgb_out\ : Force output to be in rgb, even if input is bytes.
- This option is turned on automatically in certain cases.
- -res_in RX RY: Set resolution of all input images to RX by RY pixels.
- Default is to make all input have the same resolution as the first image.
- -respad_in RPX RPY: Like -res_in, but resample to the max while respecting
- the aspect ratio, and then pad to achieve desired pixel count.
- -pad_val VAL: Set the padding value, should it be needed by -respad_in
- to VAL. VAL is typecast to byte, default is 0, max is 255.
- -crop L R T B: Crop images by L (Left), R (Right), T (Top), B (Bottom)
- pixels. Cutting is performed after any resolution change, if any, is to be done.
- -autocrop_ctol CTOL: A line is eliminated if none of its R G B values
- differ by more than CTOL% from those of the corner pixel.
- -autocrop_atol ATOL: A line is eliminated if none of its R G B values
- differ by more than ATOL% from those of line average.
- -autocrop\ : This option is the same as using both of -autocrop_atol 20
- and -autocrop_ctol 20
- NOTE: Do not mix -autocrop* options with -crop
- Cropping is determined from the 1st input image and applied to to all remaining ones.
- ++ Options for output:
- -zero_wrap: If number of images is not enough to fill matrix
- solid black images are used.
- -white_wrap\ : If number of images is not enough to fill matrix
- solid white images are used.
- -gray_wrap GRAY: If number of images is not enough to fill matrix
- solid gray images are used. GRAY must be between 0 and 1.0
- -image_wrap: If number of images is not enough to fill matrix
- images on command line are reused (default)
- -rand_wrap\ : When reusing images to fill matrix, randomize the order
- in refill section only.
- -prefix ppp = Prefix the output files with string ‘ppp’
- Note: If the prefix ends with .1D, then a 1D file containing
- the average of RGB values. You can view the output with 1dgrayplot.
- -matrix NX NY: Specify number of images in each row and column
- of IM at the same time.
-nx NX: Number of images in each row (3 for example below)
- -ny NY: Number of images in each column (4 for example below)
- Example: If 12 images appearing on the command line
are to be assembled into a 3x4 IM matrix they would appear in this order:
0 1 2 3 4 5 6 7 8 9 10 11
- NOTE: The program will try to guess if neither NX nor NY
- are specified.
- -matrix_from_scale\ : Set NX and NY to be the same as the
- SCALE_IMG’s dimensions. (needs -scale_image)
-gap G:** ERROR: Too few optionsPut a line G pixels wide between images.
- -gap_col R G B: Set color of line to R G B values.
- Values range between 0 and 255.
Resizing an image: imcat -prefix big -res_in 1024 1024
~/abin/funstuff/face_zzzsunbrain.jpg
aiv small.ppm big.ppm
aiv cat.ppm
Stitching together 3 images getting rid of annoying white boundary:
imcat -prefix surfview_pry3b.jpg -ny 1 -autocrop surfview.000[789].jpg
aiv bigcat.jpg bigcat.jpg Crop/Zoom in to see what was done. In practice, you want to use a faster image viewer to examine the result. Zooming on such a large image is not fast in aiv. Be careful with this toy. Images get real big, real quick.
Usage: imcat [options] fname1 fname2 etc. Puts a set images into an image matrix (IM)
montage of NX by NY images. The minimum set of input is N images (N >= 1). If need be, the default is to reuse images until the desired NX by NY size is achieved. See options -zero_wrap and -image_wrap for more detail.
-gscale FAC: Apply FAC in addition to scaling of -scale_* options -rgb_out: Force output to be in rgb, even if input is bytes.
This option is turned on automatically in certain cases.
-nx NX: Number of images in each row (3 for example below) -ny NY: Number of images in each column (4 for example below)
- Example: If 12 images appearing on the command line
are to be assembled into a 3x4 IM matrix they would appear in this order:
0 1 2 3 4 5 6 7 8 9 10 11
- NOTE: The program will try to guess if neither NX nor NY
- are specified.
-gap G: Put a line G pixels wide between images. -gap_col R G B: Set color of line to R G B values.
Values range between 0 and 255.
Resizing an image: imcat -prefix big -res_in 1024 1024
~/abin/funstuff/face_zzzsunbrain.jpg
aiv small.ppm big.ppm
aiv cat.ppm
Stitching together 3 images getting rid of annoying white boundary:
imcat -prefix surfview_pry3b.jpg -ny 1 -autocrop surfview.000[789].jpg
aiv bigcat.jpg bigcat.jpg Crop/Zoom in to see what was done. In practice, you want to use a faster image viewer to examine the result. Zooming on such a large image is not fast in aiv. Be careful with this toy. Images get real big, real quick.