Page 1 of 1
Problem with resizing png images
Posted: Fri Mar 22, 2019 6:19 pm
by bunak
Hi
I want to reduce the size of png-images. But Executing a command with the following options horribly distorted images.
nconvert.exe -ratio -resize 500 0 -o "D:\Imgs_resize\%" "d:\Imgs\*.png"
Why is the image so bad?
There are examples of bad images in attached files with "_res" in the end
Re: Problem with resizing png images
Posted: Sat Mar 23, 2019 3:57 pm
by cday
bunak wrote: Fri Mar 22, 2019 6:19 pm
I want to reduce the size of png-images. But Executing a command with the following options horribly distorted images.
Code: Select all
nconvert.exe -ratio -resize 500 0 -o "D:\Imgs_resize\%" "d:\Imgs\*.png"
Why is the image so bad?
There are examples of bad images in attached files with "_res" in the end
The code in the help file for the resize option is:
Code: Select all
-resize w h : Scale width-height
w h can be percent (ex: -resize 100% 200%)
So you are resizing to a height of 0 pixels ??
Re: Problem with resizing png images
Posted: Sun Mar 24, 2019 8:07 am
by xnview
if you means bad quality, you need to resize in greyscale and not in binary, so please add before -resize
Re: Problem with resizing png images
Posted: Mon Mar 25, 2019 8:32 am
by bunak
xnview wrote: Sun Mar 24, 2019 8:07 am
if you means bad quality, you need to resize in greyscale and not in binary, so please add before -resize
Thank you. Your recommendation helped.
Re: Problem with resizing png images
Posted: Mon Mar 25, 2019 8:34 am
by bunak
cday wrote: Sat Mar 23, 2019 3:57 pm
So you are resizing to a height of 0 pixels ??
It is resize Image correctly with option
-ratio