Legacy ImageMagick Discussions Archive

Hello,

Is it possible to use the covert and identify commands in the same command string?

I need to apply settings to an .tiff image file but also want to know the mean and other stats about the images AFTER the settings are applied.

I was hoping to avoid writing the file to disk.

I tried the mpr: format hoping this would work but it did not.
I tried the -write command but maybe dont understand it very well.

so example:

-the settings i am applying in the normal covert command:

Code: Select all

magick convert -quiet -colorspace GRAY  -gamma %gNum1%  -sigmoidal-contrast  %fact%,%sNum1%%%  +level 0%%,98%%  -depth 8 %fullPathtoTIFF%  output.tiff

-then to use identify

Code: Select all

magick identify output.tiff -format "Mean1=%%[fx: mean]" xc:

I have tried to string them together but i get errors sting 'identify' is not a recognized command... for example

Code: Select all

magick convert -quiet -colorspace GRAY  -gamma %gNum1%  -sigmoidal-contrast  %fact%,%sNum1%%%  +level 0%%,98%%  -depth 8 %fullPathtoTIFF%  mpr:holder ^

identify mpr:holder -format  "Mean1=%%[fx: mean]" xc:

I've checked the batch usage page and am reading through some if its content. but is there a way to load an edited image into memory and return its mean or statistics without saving the file to disk?

Thank You.

Code: Select all

magick convert -quiet -colorspace GRAY -gamma %gNum1% -sigmoidal-contrast %fact%,%sNum1%%% +level 0%%,98%% -depth 8 %fullPathtoTIFF% output.tiff

That command is bad syntax. You should read the input, then process it, then write the output.

Code: Select all

magick convert -quiet %fullPathtoTIFF% -colorspace GRAY -gamma %gNum1% -sigmoidal-contrast %fact%,%sNum1%%% +level 0%%,98%% -depth 8 output.tiff

"+write info:" will write whatever info is in the current format string, so you can put that before the output image filename.

Code: Select all

magick convert -quiet %fullPathtoTIFF% -colorspace GRAY -gamma %gNum1% -sigmoidal-contrast %fact%,%sNum1%%% +level 0%%,98%% -depth 8 -format "Mean1=%%[fx:mean]\nStdDev=%%[fx:standard_deviation]" +write info: output.tiff

You can wrap that inside a FOR loop to get environment variables called "Mean1" and "StdDev".

Thank you for the response. sorry for the delay in mine.

this works very well.

I also ended up using the mpr format with '-write' like this:

**from windows batch file:

Code: Select all

 magick convert -quiet !fullpath! %~dp0clut.tif -clut -colorspace gray -gamma !gNum! -gravity center -crop 60%% -write mpr:hgram +delete mpr:hgram -format %%c histogram:info:- >> %~dp0hist.txt

this is to output the histogram data as if edits were applied to image to see how the edits effect the image data.

That will work fine, but this sequence:

Code: Select all

-write mpr:hgram +delete mpr:hgram

... is entirely redundant. It takes a little time but does nothing useful.

I will test it out. I was doing it without the mpr before but didnt see any changes in the histogram. so maybe i was overlooking something then.

thanks for the info

confirmed. This works just fine with out the added MPR.

Thank for making this more efficient.

Legacy ImageMagick Discussions Archive

use identify and convert in same command? mpr: format. windows batch file.

use identify and convert in same command? mpr: format. windows batch file.

Re: use identify and convert in same command? mpr: format. windows batch file.

Re: use identify and convert in same command? mpr: format. windows batch file.

Re: use identify and convert in same command? mpr: format. windows batch file.

Re: use identify and convert in same command? mpr: format. windows batch file.

Re: use identify and convert in same command? mpr: format. windows batch file.

Re: use identify and convert in same command? mpr: format. windows batch file.