Legacy ImageMagick Discussions Archive

Thanks, but it seems slower than before

Hi all,

any advice?

Thanks

Hi all, based on Fred's 3dbox script i've created a commands sequence to create a 3dbox starting from a pdf. Steps Are: 1) cut off front - side - top 2) distort and merde those files 3) add a drop shadow 4) save a full size png and a smallest one All is working fine but i'm sure there's a lot of ...

Really really thanks for all of these helpful tips

ok, these are my steps: starting from this image for example (imageshack upload remove my alpha channel but you consider it) http://img338.imageshack.us/img338/7890/2011930706748670.th.png i need to find the edge's pixels coordinates so: convert $im_in -resize "$weight_dpi"x"$height_dpi" \ #I RESIZE ...

Thank's, just another little question: i use "-alpha extract -edge 1" (tried also higher edge values) to create the black and white png to use to extact pixel coordinates and all is working fine expect in a case. If i've a circle selection, edges ar cutted out on borders, like in the example http ...

what is your exact command using grep and sed, etc.? You might be able to convert much of that into using AWK, which may be faster. Thank's for answer, i use convert $f txt: | sed 's/ *,/,/g' | grep "white" | cut -d: -f1 to extract white pixels coordinates. There's no way to tell to IM txt output ...

Hi all i need to create an edges pixel map using some BIG images and the txt: output takes a lot of time to write the file. What i'm doing now is to convert the image with convert in.png -alpha extract -edge 1 out.png and then convert out.png txt: | ... with the varius grep and sed arguments to ...

It looks fine in my viewers. See my comments about Adobe PS and other viewer handling of background and alpha transparencies. Adobe viewers do not show alpha channel transparency in the display, only background transparency. Your image has only alpha channel transparency. Choose channels to see ...

did you try my suggestion of: convert test.tif -colorspace gray test2.tif or convert test.tif -channel rgba -alpha on -colorspace gray test3.tif which both worked for me. How are you viewing it? If in PS, your image does not have background transparency, so you won't see the transparency as it is ...

this works for me fine on IM 6.7.0.9 Q16 Mac OSX Tiger. In this case your image has no background transparency but has an alpha channel, which IM finds. convert test.tif -colorspace gray test2.tif identify -verbose test2.tif Image: test2.tif Format: TIFF (Tagged Image File Format) Class ...

what was your exact command(s) that you tried? can you post a link to an example image that has this problem? that way others can test it or see if there is a problem with the file -- or at least confirm your problem. The problem may be that TIFFs support two kinds of transparency, background and ...

Hi, i'm trying to convert colored tiffs images with transp. backgrounds to graysscale tiffs preserving their alpha channel (background). I tried lots of combinations (IM 6.7.0-9 compiled from source with standard config) found in this forum but i get allways white background instated of transparent ...