Legacy ImageMagick Discussions Archive

Hi there,

I am finding that the output images are still pretty blurry. I have attached the before and afters below: -

Picture 1:
Before:
https://www.dropbox.com/s/ke9tx581fn6ip5h/sey-before.jpg?dl=0
After: -
https://www.dropbox.com/s/ndw2y2t23xppzfc/sey-after.jpg?dl=0

Picture 2:
Before ...

@fmw42 thanks.

just wanted to ask, is there a way to resize by a % based ration or something rather than specifying an exact size? Also what does -interlace do and -sampling-factor 4:2:0 not sure if these settings are right or what they actually do, any advice would be great, as id like to ...

snibgo wrote: 2018-02-14T13:22:19-07:00 It makes your images linear, which is a really bad idea for the web. (In very old versions of IM, many years ago, it had the reverse effect).

Should i totally remove this, or change it to sRGB?

I am using Version: ImageMagick 7.0.7-22 Q16 x86_64 2018-02-01

The colorspace RGB was something i found from an example, was never too sure if i actually needed or what it did.

Again, same with "-sampling-factor" or "-interlace". < Not sure if i even need these or what they do! They just got ...

yeah got it, thanks for the help guys! All up and running.

Do i have the best settings for optimal compression and quality? Should i be using "sRGB" instead? Also the -sampling-factor 4:2:0, is that all ok?

Finally can you resize based on a % ratio rather than an exact size, like: -resize "700x466 ...

Ah ok. Is it possible for the two folders to be seperate and not within input:

/test/run.sh (shellscript)
/test/input
/test/output

Hi, thanks for the reply

I keep getting the following message:

convert: unable to open image 'output/IMG_1297.JPG': No such file or directory @ error/blob.c/OpenBlob/3335.

I have altered the code to match my directory setup:

#!/bin/bash

cd input
list=$(ls *.JPG)
for img in $list; do
inname ...

Hi,

I have been having issues with the page speed of my site, and after a lot of research i am hoping Image Magick will sort it out.

I want to bulk convert lots of images in one folder then export all the images into an output folder folder.

Is this possible with a shell script? ie: Loop through ...