diff --git a/doc/Makefile b/doc/Makefile
index a727434..0e0ccf2 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -9,6 +9,15 @@ lipase.pdf: lipase.tex graphics
 TRAPS_VISIBLE_CONVERTER=convert -contrast-stretch 2%x1% -resize 25%
 
 GENERATED_GRAPHICS=\
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000000_DM300_nofilter_vis_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000019_DM300_nofilter_vis_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000039_DM300_nofilter_vis_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000000_DM300_327-353_fluo_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000019_DM300_327-353_fluo_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000039_DM300_327-353_fluo_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000000_DM300_420-480_fluo_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000019_DM300_420-480_fluo_000.png \
+	graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000039_DM300_420-480_fluo_000.png \
 	graphics/res_soleil2018_GGH_GGH_2018_cin2_phiG_I_327_vis_-40_1_Pos0_img_000000000_DM300_nofilter_vis_000.png \
 	graphics/res_soleil2018_GGH_GGH_2018_cin2_phiG_I_327_vis_-40_1_Pos0_img_000000019_DM300_nofilter_vis_000.png \
 	graphics/res_soleil2018_GGH_GGH_2018_cin2_phiG_I_327_vis_-40_1_Pos0_img_000000039_DM300_nofilter_vis_000.png
@@ -16,17 +25,49 @@ GENERATED_GRAPHICS=\
 .PHONY: graphics
 graphics: $(GENERATED_GRAPHICS)
 
-graphics/res_soleil2018_GGH_GGH_2018_cin2_phiG_I_327_vis_-40_1_Pos0_img_000000000_DM300_nofilter_vis_000.png : $(RAW_IMAGES_ROOT_PATH)/res_soleil2018/GGH/GGH_2018_cin2_phiG_I_327_vis_-40_1/Pos0/img_000000000_DM300_nofilter_vis_000.tif
-	$(TRAPS_VISIBLE_CONVERTER) "$<" "$@"
+# creates a rule to list min and max of imanges in an info file for the given sequence
+# creates a rule to convert tif images into png for the given sequence
+# $1 : dir_path : eg soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1
+# $2 : pos_dir : eg Pos0
+# $3 : channel_suffix : eg 420-480_fluo_000
+# $4 : min_value : the maximum pixel value for this channel (eg 631)
+# $5 : max_value : the maximum pixel value for this channel (eg 1441)
+# eg it will create graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_%.png from $(RAW_IMAGES_ROOT_PATH)/soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1/Pos0/%.tif
+define GENERATE_CHANNEL_IMAGES_CONVERSION_RULE
+graphics/$(subst /,_,$(1))_$(2)_$(3).info:
+	convert $(RAW_IMAGES_ROOT_PATH)/$(1)/$(2)/*$(3).tif -format "%[filename] %[min] %[max]\n" info: 2>/dev/null > "$$@"
 
-graphics/res_soleil2018_GGH_GGH_2018_cin2_phiG_I_327_vis_-40_1_Pos0_img_000000019_DM300_nofilter_vis_000.png : $(RAW_IMAGES_ROOT_PATH)/res_soleil2018/GGH/GGH_2018_cin2_phiG_I_327_vis_-40_1/Pos0/img_000000019_DM300_nofilter_vis_000.tif
-	$(TRAPS_VISIBLE_CONVERTER) "$<" "$@"
+graphics/$(subst /,_,$(1))_$(2)_%$(3).png : $(RAW_IMAGES_ROOT_PATH)/$(1)/$(2)/%$(3).tif graphics/$(subst /,_,$(1))_$(2)_$(3).info
+	convert -level $(4)x$(5) -resize 25% "$$<" "$$@"
+endef
 
+# creates a rule to convert tif images into png for the given sequence
+# $1 : dir_path : eg soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1
+# $2 : pos_dir : eg Pos0
+# eg it will create graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_%.png from $(RAW_IMAGES_ROOT_PATH)/soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1/Pos0/%.tif
+define GENERATE_TRAP_SEQUENCE_IMAGES_CONVERSION_RULE
+graphics/$(subst /,_,$(1))_$(2)_%.png : $(RAW_IMAGES_ROOT_PATH)/$(1)/$(2)/%.tif
+	$(TRAPS_VISIBLE_CONVERTER) "$$<" "$$@"
+endef
 
-graphics/res_soleil2018_GGH_GGH_2018_cin2_phiG_I_327_vis_-40_1_Pos0_img_000000039_DM300_nofilter_vis_000.png : $(RAW_IMAGES_ROOT_PATH)/res_soleil2018/GGH/GGH_2018_cin2_phiG_I_327_vis_-40_1/Pos0/img_000000039_DM300_nofilter_vis_000.tif
-	$(TRAPS_VISIBLE_CONVERTER) "$<" "$@"
+# manually worked out sensible min and max values from graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_nofilter_vis_000.info
+SEQ_GGHL_RDGL_SGF55_VIS_MIN_VALUE = 13000
+SEQ_GGHL_RDGL_SGF55_VIS_MAX_VALUE = 65535  # yes, the images are saturated!
+$(eval $(call GENERATE_CHANNEL_IMAGES_CONVERSION_RULE,soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1,Pos0,nofilter_vis_000,$(SEQ_GGHL_RDGL_SGF55_VIS_MIN_VALUE),$(SEQ_GGHL_RDGL_SGF55_VIS_MAX_VALUE)))
+
+# manually worked out sensible min and max values from graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_327-353_fluo_000.info
+SEQ_GGHL_RDGL_SGF55_F340_MIN_VALUE = 631
+SEQ_GGHL_RDGL_SGF55_F340_MAX_VALUE = 1441
+$(eval $(call GENERATE_CHANNEL_IMAGES_CONVERSION_RULE,soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1,Pos0,327-353_fluo_000,$(SEQ_GGHL_RDGL_SGF55_F340_MIN_VALUE),$(SEQ_GGHL_RDGL_SGF55_F340_MAX_VALUE)))
+
+# manually worked out sensible min and max values from graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_420-480_fluo_000.info
+SEQ_GGHL_RDGL_SGF55_F450_MIN_VALUE = 700
+SEQ_GGHL_RDGL_SGF55_F450_MAX_VALUE = 1800
+$(eval $(call GENERATE_CHANNEL_IMAGES_CONVERSION_RULE,soleil2016/GGHL_rDGL_SGF55_lambda_Em_cinsuite_1,Pos0,420-480_fluo_000,$(SEQ_GGHL_RDGL_SGF55_F450_MIN_VALUE),$(SEQ_GGHL_RDGL_SGF55_F450_MAX_VALUE)))
+
+$(eval $(call GENERATE_TRAP_SEQUENCE_IMAGES_CONVERSION_RULE,res_soleil2018/GGH/GGH_2018_cin2_phiG_I_327_vis_-40_1,Pos0))
 
 .PHONY: clean
 clean:
-	rm -f $(GENERATED_GRAPHICS)
+	rm -f $(GENERATED_GRAPHICS) graphics/*.info
 	rm -f lipase.pdf lipase.aux lipase.fls lipase.log lipase.fdb_latexmk lipase.dvi; 
diff --git a/doc/lipase.tex b/doc/lipase.tex
index 1477177..d2d7913 100644
--- a/doc/lipase.tex
+++ b/doc/lipase.tex
@@ -258,6 +258,77 @@
                 \label{fig:trap_sequence1}
             \end{figure}
 
+            \begin{figure}
+                \centering
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000000_DM300_nofilter_vis_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 0}
+                    %\label{fig:1}
+                \end{subfigure}
+                ~
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000019_DM300_nofilter_vis_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 19}
+                    %\label{fig:1}
+                \end{subfigure}
+                ~
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000039_DM300_nofilter_vis_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 39}
+                    %\label{fig:1}
+                \end{subfigure}
+                \\
+                \centering
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000000_DM300_327-353_fluo_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 0, 327nm - 353nm}
+                    %\label{fig:1}
+                \end{subfigure}
+                ~
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000019_DM300_327-353_fluo_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 19, 327nm - 353nm}
+                    %\label{fig:1}
+                \end{subfigure}
+                ~
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000039_DM300_327-353_fluo_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 39, 327nm - 353nm}
+                    %\label{fig:1}
+                \end{subfigure}
+                \\
+                \centering
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000000_DM300_420-480_fluo_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 0, 420nm - 480nm}
+                    %\label{fig:1}
+                \end{subfigure}
+                ~
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000019_DM300_420-480_fluo_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 19, 420nm - 480nm}
+                    %\label{fig:1}
+                \end{subfigure}
+                ~
+                \begin{subfigure}[b]{0.3\textwidth}
+                    \includegraphics[width=1.0\textwidth]{graphics/soleil2016_GGHL_rDGL_SGF55_lambda_Em_cinsuite_1_Pos0_img_000000039_DM300_420-480_fluo_000.png}
+                    %\includegraphics[width=\textwidth]{1.png}
+                    \caption{Frame 39, 420nm - 480nm}
+                    %\label{fig:1}
+                \end{subfigure}
+
+                \caption{Example of trap sequence (\texttt{soleil2016/GGHL\_rDGL\_SGF55\_lambda\_Em\_cinsuite\_1/Pos0})}
+                \label{fig:sequence_gghl1}
+            \end{figure}
+
         \subsection{computing the circularness image}
 
             \label{sec:circularness}