Posts tagged imagemagick

typo3: fix dark pictures

posted on 2016-03-10 12:39:14

If after an update, a migration or for whatever reason your typo3 installation shows pictures being too dark, your installation very likely uses the wrong color space. Like RGB instead of sRGB.

To confirm this, grep for colorspace RGB in your typo3 installation files.

You very likely have to change like three occurences in t3lib/class.t3lib_stdgraphic.php:

-colorspace RGB

is to be replaced with

-colorspace sRGB

Log into the Backend afterwards, und click on the spark symbol on top to clear all caches. (After you have chosen your site in typo3's file tree.)

If you do not have a login, create a file called ENABLE_INSTALL_TOOL in typo3conf, and comment the original line out and add this line:

$TYPO3_CONF_VARS['BE']['installToolPassword'] = 'bacb98acf97e0b6112b1d1b650b84971';

in typo3conf/localconfiguration.php, so you can access the install tool at domainname.de/typo3/install with the default password joh316. There you can add a new admin user.

After having cleared the caches and confirming everything still works as expected, remove the ENABLE_INSTALL_TOOL file and delete your newly created backend user, and fix the install tool password in localconfiguration.php back again.

To be exact there is no reason to use graphicsmagick or change any configuration variables besides the color spaces for image rendering and clearing the caches afterwards.

This blog covers .csv, .htaccess, .pfx, .vmx, /etc/crypttab, /etc/network/interfaces, /etc/sudoers, /proc, 10.04, 14.04, AS, ASA, ControlPanel, DS1054Z, GPT, HWR, Hyper-V, IPSEC, KVM, LSI, LVM, LXC, MBR, MTU, MegaCli, PHP, PKI, R, RAID, S.M.A.R.T., SNMP, SSD, SSL, TLS, TRIM, VEEAM, VMware, VServer, VirtualBox, Virtuozzo, XenServer, acpi, adaptec, algorithm, ansible, apache, apache2.4, apachebench, apple, applet, arcconf, arch, architecture, areca, arping, asa, asdm, autoconf, awk, backup, bandit, bar, bash, benchmarking, binding, bitrate, blackarmor, blockdev, blowfish, bochs, bond, bonding, booknotes, bootable, bsd, btrfs, buffer, c-states, cache, caching, ccl, centos, certificate, certtool, cgdisk, cheatsheet, chrome, chroot, cisco, clamav, cli, clp, clush, cluster, coleslaw, colorscheme, common lisp, configuration management, console, container, containers, controller, cron, cryptsetup, csync2, cu, cups, cygwin, d-states, database, date, db2, dcfldd, dcim, dd, debian, debug, debugger, debugging, decimal, desktop, df, dhclient, dhcp, diff, dig, display manager, dm-crypt, dmesg, dmidecode, dns, docker, dos, drivers, dtrace, dtrace4linux, du, dynamictracing, e2fsck, eBPF, ebook, efi, egrep, emacs, encoding, env, error, ess, esx, esxcli, esxi, ethtool, evil, expect, exportfs, factory reset, factory_reset, factoryreset, fail2ban, fbsd, fdisk, fedora, file, filesystem, find, fio, firewall, firmware, fish, flashrom, forensics, free, freebsd, freedos, fritzbox, fsck, fstrim, ftp, ftps, g-states, gentoo, ghostscript, git, git-filter-branch, github, gitolite, global, gnutls, gradle, grep, grml, grub, grub2, guacamole, hardware, haskell, hdd, hdparm, hellowor, hex, hexdump, history, howto, htop, htpasswd, http, httpd, https, i3, icmp, ifenslave, iftop, iis, imagemagick, imap, imaps, init, innoDB, innodb, inodes, intel, ioncube, ios, iostat, ip, iperf, iphone, ipmi, ipmitool, iproute2, ipsec, iptables, ipv6, irc, irssi, iw, iwconfig, iwlist, iwlwifi, jailbreak, jails, java, javascript, javaws, js, juniper, junit, kali, kde, kemp, kernel, keyremap, kill, kpartx, krypton, lacp, lamp, languages, ldap, ldapsearch, less, leviathan, liero, lightning, links, linux, linuxin3months, lisp, list, livedisk, lmctfy, loadbalancing, locale, log, logrotate, looback, loopback, losetup, lsblk, lsi, lsof, lsusb, lsyncd, luks, lvextend, lvm, lvm2, lvreduce, lxc, lxde, macbook, macro, magento, mailclient, mailing, mailq, manpages, markdown, mbr, mdadm, megacli, micro sd, microsoft, minicom, mkfs, mktemp, mod_pagespeed, mod_proxy, modbus, modprobe, mount, mouse, movement, mpstat, multitasking, myISAM, mysql, mysql 5.7, mysql workbench, mysqlcheck, mysqldump, nagios, nas, nat, nc, netfilter, networking, nfs, nginx, nmap, nocaps, nodejs, numberingsystem, numbers, od, onyx, opcode-cache, openVZ, openlierox, openssl, openvpn, openvswitch, openwrt, oracle linux, org-mode, os, oscilloscope, overview, parallel, parameter expansion, parted, partitioning, passwd, patch, pct, pdf, performance, pfsense, php, php7, phpmyadmin, pi, pidgin, pidstat, pins, pkill, plasma, plesk, plugin, posix, postfix, postfixadmin, postgres, postgresql, poudriere, powershell, preview, profiling, prompt, proxmox, ps, puppet, pv, pveam, pvecm, pvesm, pvresize, python, python3, qemu, qemu-img, qm, qmrestore, quicklisp, quickshare, r, racktables, raid, raspberry pi, raspberrypi, raspbian, rbpi, rdp, redhat, redirect, registry, requirements, resize2fs, rewrite, rewrites, rhel, rigol, roccat, routing, rs0485, rs232, rsync, s-states, s_client, samba, sar, sata, sbcl, scite, scp, screen, scripting, seafile, seagate, security, sed, serial, serial port, setup, sftp, sg300, shell, shopware, shortcuts, showmount, signals, slattach, slip, slow-query-log, smbclient, snmpget, snmpwalk, software RAID, software raid, softwareraid, sophos, spacemacs, spam, specification, speedport, spi, sqlite, squid, ssd, ssh, ssh-add, sshd, ssl, stats, storage, strace, stronswan, su, submodules, subzone, sudo, sudoers, sup, swaks, swap, switch, switching, synaptics, synergy, sysfs, systemd, systemtap, tar, tcpdump, tcsh, tee, telnet, terminal, terminator, testdisk, testing, throughput, tmux, todo, tomcat, top, tput, trafficshaping, ttl, tuning, tunnel, tunneling, typo3, uboot, ubuntu, ubuntu 16.04, ubuntu16.04, udev, uefi, ulimit, uname, unetbootin, unit testing, upstart, uptime, usb, usbstick, utf8, utm, utm 220, ux305, vcs, vgchange, vim, vimdiff, virtualbox, virtualization, visual studio code, vlan, vmstat, vmware, vnc, vncviewer, voltage, vpn, vsphere, vzdump, w, w701, wakeonlan, wargames, web, webdav, weechat, wget, whois, wicd, wifi, windowmanager, windows, wine, wireshark, wpa, wpa_passphrase, wpa_supplicant, x11vnc, x2x, xfce, xfreerdp, xmodem, xterm, xxd, yum, zones, zsh


Unless otherwise credited all material Creative Commons License by sjas