forked from tTh/FloatImg
commit du soir, espoir
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@ -2,7 +2,7 @@
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* floatimg.h
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*/
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#define FIMG_VERSION 71
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#define FIMG_VERSION 72
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/*
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* in memory descriptor
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@ -47,6 +47,8 @@ int fimg_clear(FloatImg *fimg);
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int fimg_add_rgb(FloatImg *head, int x, int y, float r, float g, float b);
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int fimg_images_compatible(FloatImg *a, FloatImg *b);
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int fimg_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef);
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/* 'operats' module */
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@ -69,11 +71,12 @@ int fimg_fileinfos(char *fname, int *datas);
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int fimg_dump_to_file(FloatImg *head, char *fname, int notused);
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int fimg_create_from_dump(char *fname, FloatImg *head);
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/* mathematics oprations */
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/* mathematics operations */
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float fimg_get_maxvalue(FloatImg *head);
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int fimg_meanvalues(FloatImg *head, float means[4]);
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int fimg_to_gray(FloatImg *head);
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void fimg_add_cste(FloatImg *fi, float value);
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void fimg_mul_cste(FloatImg *fi, float value);
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void fimg_drand48(FloatImg *fi, float kmul);
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/* various funcs modules */
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@ -2,10 +2,10 @@
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# building the base library
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#
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COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=0
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COPT = -Wall -fpic -g -pg -no-pie -DDEBUG_LEVEL=0
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OBJS = fimg-core.o fimg-pnm.o fimg-file.o fimg-math.o \
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fimg-timers.o operators.o fimg-2gray.o \
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interpolate.o
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interpolate.o fimg-compare.o
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DEPS = Makefile ../floatimg.h
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@ -25,6 +25,9 @@ t: t.c ../libfloatimg.a $(DEPS)
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fimg-core.o: fimg-core.c $(DEPS)
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gcc $(COPT) -c $<
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fimg-compare.o: fimg-compare.c $(DEPS)
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gcc $(COPT) -c $<
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fimg-2gray.o: fimg-2gray.c $(DEPS)
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gcc $(COPT) -c $<
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40
lib/fimg-compare.c
Normal file
40
lib/fimg-compare.c
Normal file
@ -0,0 +1,40 @@
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/*
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* fimg-core.c
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*
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "string.h"
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#include "../floatimg.h"
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extern int verbosity; /* must be declared around main() */
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/* ---------------------------------------------------------------- */
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int fimg_images_compatible(FloatImg *a, FloatImg *b)
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{
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %p )\n", __func__, a, b);
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#endif
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if (a->type != b->type) {
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if (verbosity) fprintf(stderr, "%p %p != type\n", a, b);
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return -10;
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}
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if (a->width != b->width) {
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if (verbosity) fprintf(stderr, "%p %p != width\n", a, b);
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return -11;
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}
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if (a->height != b->height) {
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if (verbosity) fprintf(stderr, "%p %p != height\n", a, b);
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return -12;
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}
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return 0;
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}
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/* ---------------------------------------------------------------- */
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@ -103,11 +103,30 @@ nbre = fi->width * fi->height * fi->type;
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#if DEBUG_LEVEL
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fprintf(stderr, "%s, nbre is %d\n", __func__, nbre);
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#endif
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for (idx=0; idx<nbre; nbre++) {
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for (idx=0; idx<nbre; idx++) {
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fi->R[idx] += value;
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}
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}
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/* ---------------------------------------------------------------- */
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void fimg_mul_cste(FloatImg *fi, float value)
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{
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int nbre, idx;
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if (fi->type != FIMG_TYPE_RGB) {
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fprintf(stderr, "%s : type %d invalide\n",
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__func__, fi->type);
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return;
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}
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nbre = fi->width * fi->height * fi->type;
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// #if DEBUG_LEVEL
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fprintf(stderr, "%s, nbre is %d\n", __func__, nbre);
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// #endif
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for (idx=0; idx<nbre; idx++) {
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fi->R[idx] *= value;
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}
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}
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/* ---------------------------------------------------------------- */
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/* Warning: this function is _very_ slow */
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void fimg_drand48(FloatImg *fi, float kmul)
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{
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@ -1,3 +1,6 @@
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/*
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* interpolate.c
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*/
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#include <stdio.h>
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#include <stdlib.h>
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@ -12,37 +15,53 @@ int verbosity;
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/* ---------------------------------------------------------------- */
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static int gray_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
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{
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return -1;
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}
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/* ---------------------------------------------------------------- */
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int fimg_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
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{
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int picsize, idx;
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if (FIMG_TYPE_RGB != s1->type) {
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fprintf(stderr, "%s : bad src 1 type %d on %p\n", __func__,
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s1->type, s1);
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return -8;
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}
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if (FIMG_TYPE_RGB != s2->type) {
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fprintf(stderr, "%s : bad src 2 type %d on %p\n", __func__,
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s2->type, s2);
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return -8;
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}
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if (FIMG_TYPE_RGB != d->type) {
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fprintf(stderr, "%s : bad dst type %d on %p\n", __func__,
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d->type, d);
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return -9;
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}
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picsize = d->width * d->height * 3;
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picsize = d->width * d->height;
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for (idx=0; idx<picsize; idx++) {
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d->R[idx] = (coef * s1->R[idx]) + ((1.0-coef) * s2->R[idx]);
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}
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return 0;
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}
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/* ---------------------------------------------------------------- */
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static int rgb_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
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{
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int picsize, idx;
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picsize = d->width * d->height * 3; /* rude hack ? */
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for (idx=0; idx<picsize; idx++) {
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d->R[idx] = (coef * s1->R[idx]) + ((1.0-coef) * s2->R[idx]);
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}
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return 0;
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}
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/* ---------------------------------------------------------------- */
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int fimg_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
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{
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int foo;
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foo = fimg_images_compatible(s1, s2);
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if (foo) {
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fprintf(stderr, "compat -> %d\n", foo);
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return foo;
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}
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foo = fimg_images_compatible(s1, d);
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if (foo) {
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fprintf(stderr, "compat -> %d\n", foo);
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return foo;
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}
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switch (s1->type) {
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case FIMG_TYPE_GRAY:
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gray_interpolate(s1, s2, d, coef); break;
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case FIMG_TYPE_RGB:
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rgb_interpolate(s1, s2, d, coef); break;
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default:
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fprintf(stderr, "%s, %d is a bad type\n", __func__, s1->type);
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return -18;
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}
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return 0;
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41
lib/t.c
41
lib/t.c
@ -72,56 +72,65 @@ foo = fimg_create(&dessin, W, H, 3);
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petit_dessin(&dessin);
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foo = fimg_create(&noise, W, H, 3);
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fimg_drand48(&noise, 0.1);
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****/
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/* ---------------------------------------------------------------- */
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#define W 320
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#define H 240
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int main(int argc, char *argv[])
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{
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int foo, idx;
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int foo, idx, opt;
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float coef;
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FloatImg dessin, noise, result;
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char outname[100];
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int gray = 0;
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int nb_img = 42;
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verbosity = 1;
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while ((opt = getopt(argc, argv, "gn:v")) != -1) {
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switch(opt) {
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case 'g': gray++; break;
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case 'n': nb_img=atoi(optarg); break;
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case 'v': verbosity++; break;
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}
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}
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if (verbosity) fimg_print_version(0);
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fimg_print_version(1);
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foo = fimg_create_from_png("/home/tth/TMP/floatimg/s1.png", &dessin);
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if (foo) {
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fprintf(stderr, "s1 load err %d\n", foo);
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exit(1);
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}
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fimg_describe(&dessin, "s1 dessin");
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fimg_to_gray(&dessin);
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if (verbosity) fimg_describe(&dessin, "s1 dessin");
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if (gray) fimg_to_gray(&dessin);
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foo = fimg_create_from_png("/home/tth/TMP/floatimg/s2.png", &noise);
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if (foo) {
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fprintf(stderr, "s2 load err %d\n", foo);
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exit(1);
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}
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fimg_describe(&noise, "s2 noise");
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if (verbosity) fimg_describe(&noise, "s2 noise");
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fimg_mul_cste(&noise, 0.50);
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if (gray) fimg_to_gray(&noise);
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foo = fimg_create(&result, W, H, 3);
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if (verbosity) fimg_describe(&result, "d result");
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#define NBRE 20
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for (idx=0; idx<NBRE; idx++) {
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coef = (float)idx / (float)NBRE;
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coef = (0.5-0.5*cos( 3.141592654*coef));
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fprintf(stderr, "running for %d picz\n", nb_img);
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for (idx=0; idx<nb_img; idx++) {
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coef = (float)idx / (float)nb_img;
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// coef = (0.5-0.5*cos(4*3.141592654*coef));
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foo = fimg_interpolate(&dessin, &noise, &result, coef);
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printf("%6d %9.6f\n", idx, coef);
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// fimg_to_gray(&result);
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printf("%6d %9.6f\n", idx, coef);
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sprintf(outname, "/home/tth/TMP/floatimg/%05d.pnm", idx);
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foo = fimg_save_as_pnm(&result, outname, 0);
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}
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// essai_2gray(&result, "gray.pnm");
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/* yes, we can cleanup after work */
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fimg_destroy(&dessin), fimg_destroy(&noise), fimg_destroy(&result);
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return 0;
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