Opened 8 months ago

Closed 6 months ago

#1733 closed defect (invalid)

"image_filter resize/crop" action replaces transparent background on black one

Reported by: followmelistenme@… Owned by:
Priority: major Milestone:
Component: nginx-module Version: 1.14.x
Keywords: image_filter, image_filter resize, image_filter crop, transparent background Cc:
uname -a: Linux hostname 4.15.6-1-apparmor #1 SMP PREEMPT Mon Feb 26 15:42:51 +07 2018 x86_64 GNU/Linux
nginx -V: nginx version: nginx/1.14.0 built with OpenSSL 1.1.0h 27 Mar 2018 TLS SNI support enabled configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --sbin-path=/usr/bin/nginx --pid-path=/run/nginx.pid --lock-path=/run/lock/nginx.lock --user=http --group=http --http-log-path=/var/log/nginx/access.log --error-log-path=stderr --http-client-body-temp-path=/var/lib/nginx/client-body --http-proxy-temp-path=/var/lib/nginx/proxy --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-pcre-jit --with-file-aio --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_degradation_module --with-http_flv_module --with-http_geoip_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_ssl_module --with-threads --with-stream_ssl_preread_module --with-stream_geoip_module --with-stream_realip_module --with-http_image_filter_module

Description

Problem is: image_filter module replace transparent background to black one for PNG images.

I tested previous versions and it was working until 1.11.14
Seems that bug came from 1.12.0 version and stay in higher versions.

My configuration is:

        image_filter_buffer  15M;
	image_filter_jpeg_quality  95;
	image_filter_watermark_width_from 200;
	image_filter_watermark_height_from 200;
	image_filter_watermark_position center-random;

	location ~* "^/nginx_resize/(?<width>\d+|-)/(?<height>\d+|-)/(?<image_uri>.*)$" {
		if ($http_x_watermark_path) {
			rewrite ^/nginx_resize/(.*) /watermark-resize/$1 last;
		}

		image_filter        resize $width $height;

		proxy_pass          http://static-cache/$image_uri;
		proxy_set_header    Host static-cache;
	}

Change History (2)

comment:1 Changed 8 months ago by mdounin

The image_filter_watermark_... directives suggest that you are using a 3rd party module. Are you able to reproduce the problem without any 3rd party modules / patches?

comment:2 Changed 6 months ago by mdounin

  • Resolution set to invalid
  • Status changed from new to closed

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