Search found 21733 matches

by fmw42
2017-09-23T10:28:48-07:00
Forum: Users
Topic: its possible get the average pixel of every columns of pixels?
Replies: 3
Views: 74

Re: its possible get the average pixel of every columns of pixels?

x1 means one row by full number of columns, (Wx1)
by fmw42
2017-09-23T10:01:29-07:00
Forum: Users
Topic: its possible get the average pixel of every columns of pixels?
Replies: 3
Views: 74

Re: its possible get the average pixel of every columns of pixels?

Please always provide your IM version and platform/OS when asking questions, since syntax may vary.

Code: Select all

convert image.png -scale x1 1Dimage.png
or

Code: Select all

convert image.png -scale x1 txt:
The latter will give you text listing of each pixel in the 1D average.
by fmw42
2017-09-22T23:14:13-07:00
Forum: MagickWand for PHP
Topic: PDF joining limited to 14 files... convert: Postscript delegate failed
Replies: 6
Views: 105

Re: PDF joining limited to 14 files... convert: Postscript delegate failed

Ghostscript is 8.70 IM is 6.7.2.7-6 These are both ancient release. IM is at 6.9.9.14. (so over 250 versions old) (unless there have been patches). My GS is gs --version 9.21 You probably exceeded one of the policy.xml limitation (perhaps tmp space). But you can edit the policy.xml file (or your ho...
by fmw42
2017-09-22T19:47:37-07:00
Forum: MagickWand for PHP
Topic: PDF joining limited to 14 files... convert: Postscript delegate failed
Replies: 6
Views: 105

Re: PDF joining limited to 14 files... convert: Postscript delegate failed

What about your Imagemagick policy.xml file? Does it have enough resources? Is your Ghostscript up to date? You do not mention the GS version.
by fmw42
2017-09-22T09:37:49-07:00
Forum: Users
Topic: Converting EPS to GIF, loosing Transparency
Replies: 15
Views: 313

Re: Converting EPS to GIF, loosing Transparency

It is not possible to maintain good text quality at such low resolution (resize 10%) when outputting to GIF, since GIF only supports binary transparency. The only way would be to flatten to some background color before resizing and thus lose your transparency. If you need to good quality, you will h...
by fmw42
2017-09-21T22:16:10-07:00
Forum: Users
Topic: Unable to process a poor quality image
Replies: 6
Views: 110

Re: Unable to process a poor quality image

If you had scanned it as PDF, you could increase the density. But not when it is scanned as a raster image.
by fmw42
2017-09-21T21:25:35-07:00
Forum: Users
Topic: Unable to process a poor quality image
Replies: 6
Views: 110

Re: Unable to process a poor quality image

The resolution of your images makes the smaller fonts too small for good OCR. You would need to re-scan the documents at a higher density/resolution.
by fmw42
2017-09-21T21:22:28-07:00
Forum: Users
Topic: Does editing a multipage TIFF with jpeg compression result in image deterioration?
Replies: 2
Views: 47

Re: Does editing a multipage TIFF with jpeg compression result in image deterioration?

I think it depends upon the software you use to do the editing. If it has to decompress the file to rearrange the pages and then recompress, then it would lose quality since JPG compression is lossy.
by fmw42
2017-09-21T18:49:09-07:00
Forum: Users
Topic: PNG trim to clipping path with transparent background
Replies: 8
Views: 137

Re: PNG trim to clipping path with transparent background

try using PNG32: rather than PNG for your output if you want it to have transparency
by fmw42
2017-09-21T18:46:51-07:00
Forum: Users
Topic: Combining two multipage TIFFs and several jpegs into one multipage TIFF
Replies: 5
Views: 88

Re: Combining two multipage TIFFs and several jpegs into one multipage TIFF

Your image size is 2600x3800 pixels with no virtual pixel offsets (+0+0). Your density is 400 dpi (since units are pixels per inch).
by fmw42
2017-09-21T18:44:15-07:00
Forum: Bugs
Topic: Cannot convert PSD
Replies: 2
Views: 77

Re: Cannot convert PSD

For us to help, you will need to provide your PSD image. You can upload to some free hosting service that will not change the format and put the ULR here. Alternately, show the results from magick identify -verbose 2.psd. You have probably used some compression method that Imagemagick does not recog...
by fmw42
2017-09-21T00:09:42-07:00
Forum: Users
Topic: Combining two multipage TIFFs and several jpegs into one multipage TIFF
Replies: 5
Views: 88

Re: Combining two multipage TIFFs and several jpegs into one multipage TIFF

Print size depend upon the density and number of pixels in each dimension. You can convert to pixels for any desired density. If you want density of 400 dpi and 6.5 inches, then 400*6.5=2560 pixels. Similarly, 400*9.5=3800 pixels. What are the pixel dimensions of your 6.5x9.5 in images and what are ...
by fmw42
2017-09-20T23:37:00-07:00
Forum: Users
Topic: Combining two multipage TIFFs and several jpegs into one multipage TIFF
Replies: 5
Views: 88

Re: Combining two multipage TIFFs and several jpegs into one multipage TIFF

Convert inches to pixels using nominal density of 72 dpi. Then resize all the images to that pixel size and output as a new tif
by fmw42
2017-09-20T23:33:12-07:00
Forum: Users
Topic: Alternative to "-morphology dilate octagon".
Replies: 11
Views: 159

Re: Alternative to "-morphology dilate octagon".

If large blur operations are slowing things down, you can combine blur with resize to speed things up. See http://www.fmwconcepts.com/imagemagick/ ... fast_gblur
by fmw42
2017-09-20T16:56:23-07:00
Forum: Users
Topic: how I could create a image like this with imagemagick?
Replies: 2
Views: 55

Re: how I could create a image like this with imagemagick?

This appears to be a just a repeated pattern. See -tile or tile: http://www.imagemagick.org/Usage/canvas/#tile http://www.imagemagick.org/script/formats.php#builtin-patterns also see http://www.imagemagick.org/Usage/video/#deinterlace Please, always provide your IM version and platform when asking q...